As you can see from their weight, female jackrabbits are larger than males. Jackrabbits breed throughout the year. After visiting a nature center, students were asked to contrast their observations based on location. Pygmy Rabbit. West of the Cascade Range, the dorsal hairs of this rabbit have gray blending to dark-brown or blackish base followed by a narrow band of buff and a black. This allows heat to escape into the air around the jackrabbit. Young jackrabbits are born bright-eyed and active, and after. The black jackrabbit is quite rare and is endemic to Mexico. Here are eight examples. Status of the black-tailed jackrabbit in the U. Those circannual traits include seasonal migration, hibernation and coat colour moults, and their occurrence and optimal phenology is critical. Its legs grow from 4 to 6 in (10 to 15 cm) in the front and the back legs can grow from 6 to 12 in (15 to 30 cm) long. 67 in the Southwest, 3. The Black-tailed jackrabbit does not migrate or hibernate during winter and uses the same habitat year-round. It is hard 457 to draw an inference. Genus Lepus common hares and jackrabbits. The chaparral biome is found in various continents, including the west coast of the United States, South America, Western Australia, and the Mediterranean coastal areas. The Black-Tailed Jackrabbit lives in hot desert areas in the Western U. This species is sensitive to some disturbance regimes. The snowshoe hare ( Lepus americanus ), also called the varying hare or snowshoe rabbit, is a species of hare found in North America. An excellent example of such adaptation could be seen in the jackrabbit living in desert environments. 6 kg). About two inches smaller and two pounds lighter, it is. We collected harvest and survey information on ∼800 antelope jackrabbits (Lepus alleni) and 27 black-tailed jackrabbits (L. Size: LARGE. Even adult black-tailed jackrabbits weighing more than 2,000 g (4. She. For example, the black tailed jackrabbit has extremely large ears, which can reach a third of its body in length. Description: Readily distinguished from other rabbits by its large size and elongate ears and limbs. In collaboration with the Biomimicry Institute, we delve into the cooling strategy of black-tailed jackrabbits and how it could inspire innovative solutions for human technology. What are 4 adaptations of a volcano rabbit? 4 adaptations of volcanic rabbit are : Long ears Eyes on the sides of their heads Strong hind legs Comouflageblack- and white-tailed jackrabbits are all common prey items for golden eagles (Boyko et al. In the summer they eat mostly green plants and flowers that are high in water content, so they do not require much water. The tail has a black stripe above. . 5-24. This may result in a reduction. Members of the order Lagomorpha (hares, rabbits and pikas) vary in cursorial ability; hares are generally highly cursorial, rabbits more frequently saltate, and pikas predominantly trot. The ears along with the tail are tipped with black fur. The black-tailed jackrabbits (Lepus californicus) most identifying feature is its huge ears. With yellowish to grey/brown fur. , shrub-steppe, grassland, desert), with presence of some shrub cover being an important habitat feature. These super-fast creatures “have 2 pairs of sharp front teeth, one pair on top, and one pair on the bottom. The black-tailed jackrabbit is long-legged and lean, about 17-31 inches, and weighs 3-7 pounds. 5 to 3 inches long. Life History The Black-tailed Jackrabbit spends most of its day resting in a scratched-out hollow in the ground. It has long slender front legs and large hind feet that can be 5 inches in length. The large ears of. 4 to 2. After their food have been. the jackrabbit can shed all excess body heat through its ears. This applies to the black-tailed jackrabbit as well, studying the species' behaviour gives us knowledge about the animal but also the Chapparal biome as a whole. When threatened, they can also leap up to 10-20 ft. Their color and shape vary by species, but generally they are tan, grey, silver, brown, or black. Although the animal proved well adapted to arid surroundings, these authors noted that L. Many different. Compare the images of a black-tailed jackrabbit (Lepus californicus) and a snowshoe hare (Lepus americanus) and answer the questions below. All of the moths live on trees with white bark. The black-tailed jackrabbit is slightly smaller than the white-tailed jackrabbit but considerably larger than the snowshoe hare. This includes classic three-reel slots as well as 3D five-reel slots with immersive bonus games and other special features. Jackrabbits can adapt to several different habitats, as long as there are many types of plants in the area. While they may look odd, those large ears are extraordinarily useful. Its ears and the top of the tail are tipped in black. A black-tailed jackrabbit. Lepus californicus. Distribution in CA: UNCOMMON to RARE on the crest and upper eastern slopes of the Sierra. A Review of the Ongoing Decline of the White-Tailed Jackrabbit. 7 kg), the black-tailed jackrabbit is the. Blue Planet Biomes: Black-tailed Jackrabbit ; Ask Nature: Large Ears Used to Cool Off: Jackrabbit ; Desert USA: Jack Rabbits ; Arizona-Sonora Desert Museum: The Desert. The California quail is a small, plump game bird with short wings that can be found in the chaparral regions of California. only in the morning, Organisms that live in desert and desert-scrub biomes have. It is similar to species like the black-tailed jackrabbit and white-sided jackrabbit. They reach sexual maturity in 1 year. Description. The snowshoe (or varying hare) is known as the snowshoe rabbit. While the urban environment typically presents wildlife with lethal challenges, it may also present new opportunities for species able to behaviourally adapt. (NatureServe 2011). The jackrabbit has long ears and long rear legs. Hares live in open areas and rely on running in a zigzag pattern to escape their predators. A frugal diet with little water, camouflage, eyes on the sides of their heads, furry feet, agile flight and enormous ears. black-tailed jackrabbit. Larger females. What are physical and behavioral adaptations does the black-tailed jackrabbit? Feet and fur: They exhibit feet covered with fur so as to protect themselves from the hot desert sand. This majestic creature can grow up to 2 ft (61 cm) in length and can weigh anywhere from 3 to 6 lb (1. The brownish black-tailed jackrabbit is smaller than the antelope jack, at about 8 pounds (3. It has long slender front legs and large hind feet that can be 5 inches in length. They’re easily identified by their distinctive large ears, peppered coat, and white underbelly. The snowshoe hare is 13–18 inches long, 2–4 pounds in weight and has an ear length of 3–4 inches. Its fur is a dark buff color that is peppered with black. it allows them to retain more fat from food. Mammalian predators such as coyotes, foxes and weasels also hunt and kill jackrabbits. Texan Hare. As you might expect, a rabbit’s long ears do a lot to improve their hearing. The hares host many ectoparasites including fleas, ticks, lice, and mites; for this reason, hunters often avoid collecting them. 30 seconds. 7-65 cm) and the tail measures from 2-4. Fur: brownish-gray in summer, or whitish-pale gray in winter! Ears: VERY LONG, BLACK-tipped. Red-tailed hawks, eagles, great horned owls and barn owls are among the winged predators of jackrabbits. Both eat just about anything vegetable: grasses, herbs, cactus pads, leaves from. 2008), the Desert Southwest (Vorhies and. The antelope jackrabbit (Lepus alleni) was one of the last large mammals described from North America (Mearns, 1890) and this species remains one of the least-studied hares. The Black-tailed Jackrabbit has an unusual habit: it eats its own feces (poop)! After food is digested for the first time, the rabbit eats its “cecal” pellets. Thus, a hot bird sleeks its feathers and stands tall to expose its legs to the air. They have developed several adaptations which keeps them cool in the desert or chaparral biome. This along with the fact that their head is slightly flat allows them to see almost 360 degrees (a full circle) helping to spot predators. The underparts are white to grayish white. Black Tailed Jackrabbit stock photos are available in a variety of sizes and formats to fit your needs. The black-tailed jackrabbit (Lepus californicus), also known as the American desert hare, is a common hare of the western United States and Mexico, where it is found at elevations from sea level up to 10,000 ft (3,000 m). The jackrabbit is a common name for two hare species that are native to North and Central America: the black-tailed jackrabbit (Lepus californicus). Filter results by. The brownish black-tailed jackrabbit is smaller than the antelope jack, at about 8 pounds (3. Habitat: open, grassy, or sagebrush-dominated plains; also subalpine conifer or alpine dwarf-shrub. Tehran Weegy: Dubai has caused the most damage to its. Cheatgrass encroachment following wildfires will likely further. Bergmann's and Allen's rules apply to many animals, not just humans. They can regulate their body temperature (and keep themselves cool in the sun) with their huge. Mammal. Study with Quizlet and memorize flashcards containing terms like Camel humps are an adaptation for _______. Year-round mating. Black Walnut. (Two larger hares, the Arctic and Alaskan hares, are found further north in North America). Oversized hind legs launch them across desert sage and grassy prairie, and their giant ears release heat to cool their bodies. Description Habitat and Distribution Diet Behavior Reproduction and Offspring Conservation Status Threats Black-Tailed Jackrabbits and Humans Sources. The black-tailed jackrabbit is somewhat smaller, weighing only 3 to 7 pounds. Black-tailed Jackrabbit habitat that is reflected in their declining populations. The black-tailed jackrabbit is long-legged and lean, about 17-31 inches, and weighs 3-7 pounds. HDR. This species and its only congener, the diminutive island fox (Urocyon littoralis) of the California Channel Islands, are the only living members of the genus Urocyon, which is considered to be. Although the animal proved well adapted to arid surroundings, these authors noted that L. 83 lb. 45 to 0. Length. The eastern cottontail is 14 to 17 inches in length and weighs between 2 and 4 pounds. Lepus californicus. It reaches a height of 70 to 90 feet and spread of 30 to 40 feet. The brownish or grayish ears are 2. and Mexico. They have powerful hind legs that can propel them on leaps of more than 10 feet (3 meters) . 5. eagles and bald eagles (Haliaeetus leucocephalus) primarily relied on black-tailed jackrabbits as prey during winter. P @ Denver Museum of Nature. 1965, Bartel et al. g. The IUCN has listed this species as a "vulnerable species" because of its restricted range. They also have a second set of incisors. Coyote. California Leaf-Nosed BatThe black-tailed jackrabbit grows to reach around 24 inches (60 cm) in length and weighs between 1 and 2 pounds as an adult, depending on the species (0. The range of the white-tailed jackrabbit overlaps that of the black-tailed jackrabbit, but the white-tailed jackrabbit prefers lowland plains and prairies, while the black-tailed jackrabbit lives at higher altitudes. Before Bay Nature she worked in journalism for more than a decade as a former newspaper reporter. The white-sided jackrabbit's body length ranges from 16 to 30 in (41 to 76 cm) long. White-tailed jackrabbits are the largest lagomorphs in the state. As prey animals, they have ways of. Sylvilagus aquaticus. Lepus californicus black-tailed jackrabbit. Alison Hawkes. . GENERAL DISTRIBUTION : Black-tailed jackrabbit is the most widely distributed jackrabbit (Lepus spp. Contrast the advantages and disadvantages of each. Jackass-hare. Hare. In conformation, it is much like the white-tailed jackrabbit. What physical and behavioral adaptations does the black-tailed jackrabbit have that help it survive in the chaparral biome? (site 1) 00:15. as a white paste c. These nocturnal hares are indiscriminate herbivores, eating any plant life they can reach. These speedy animals are capable of reaching 40 miles (64 kilometers) an hour. If they do feel threatened, they may zig-zag as fast as 30-35 miles per hour and leap 20 feet at a bound!Jack tailed Jackrabbit is the black-tailed jackrabbits observed to have distinctive long hairs and characteristics of hares. heat-dispersal abilities and adaptations to a hot, arid environment. The black-tailed jackrabbit looks much like the white-tailed jackrabbit except it is slightly smaller and its tail is black instead of white. It is similar to species like the black-tailed jackrabbit and white-sided jackrabbit. Big free-tailed bat; Black-tailed jackrabbit; Blanford's fox. Their color and shape vary by species, but generally they are tan, grey, silver, brown, or black. Erxleben, 1777. Like the iconic arctic fox, the snowshoe hare dons white fur for the winter—a good camouflage in the snow. He was unable to distinguish between pellets from the two eagle species, which were active in the same areas, but found that 98% of pellets contained black-tailed jackrabbits. Study with Quizlet and memorize flashcards containing terms like Camel humps are an adaptation for _______. S. White-tailed jacket rabbits are ideal prey for many prairie predators, including some other at-risk species, such as the golden eagle and swift fox. Rabbits are altricial,. Sexual Reproduction and Child Care. Ferreira1,2,3,4*†, Timothy J. Gray-sided Jackrabbit. 4 g. The jackrabbit’s range is shrinking across the central Plains as prairie habitats are altered by agriculture and, in some areas, overgrazing. On upland sites. Many aspects of a rabbit’s body have helped them to become an excellent survival species. Studies of mammalian ecology in southwestern North America with special attention to the colors of desert mammals. Discover how they hop and run so fast, their specialized eyes and. 4 in (5-11. Animalia: information (1) Animalia: pictures (22861) Animalia: specimens (7109) Animalia: sounds (722). 4 to 2. NatureServe status by state* U. Class Mammalia (“breast”): Bats, cats, whales, horses, humans . And the white-tailed version, which can weigh up to six. 2 cm) when fully grown. Black jackrabbit; White-tailed jackrabbit. 4312. Here are some possible changes that could occur:Reduced range: As temperatures rise, the habitat suitable for the black-tailed jackrabbit may shift. and ASIP between white-tailed jackrabbits and (C) black-tailed jackrabbits or (D. It can be found at elevations ranging from sea level up to 10,000 ft (3,000 m). Jackrabbits are mammals that belong to the Lepus genus and the Leporidae family. a desert jackrabbit can run much faster than a coyote; as such, "an ordinary wolf or coyote will not attempt to chase him, for they realize the hopelessness of it. It has distinctive long ears tipped with black. Imagine living in the scorching temperatures of Death Valley. The jackrabbit of the desert is known for its very large ears, an adaptation that significantly helps its need to cool off in very high desert temperatures. To withstand the heat of the desert sun, the rabbit spreads out its large, thin ears, releasing heat as blood travels through the veins. The white-sided jackrabbit's ears grow 2 to 6 in (5. Hair, unique to this group of life, is generally light in color on desert dwellers. As a result of demo-graphic studies of jack rabbits in CurlewThe Texas black-tailed jackrabbit ( Lepus californicus texianus) also known as the Texan black-tailed jackrabbit, Texian black-tailed jackrabbit, Texas jackrabbit, Texian hare, or the Texan jackrabbit, [1] is a subspecies of the black-tailed jackrabbit that is native to parts of Texas, and the southwest United States, northern Mexico, and some. 2018; Brown et al. 1. Black-tailed jackrabbits live in American desert scrub lands. RHDV-2 is highly contagious among lagomorphs and can spread by direct contact with infected rabbits or indirectly through contact with infected carcasses, blood, urine, and feces. Of these, only the black-tailed jack rabbit (Lepus californicus) is a desert dweller, inhabiting all 4 southwestern deserts. The black-tailed jackrabbits (Lepus californicus) most identifying feature is its huge ears. This jackrabbit has an adult length of 56 to 65 cm (22 to 26 in), including a tail measuring 6. 1990. White-tailed jackrabbits are a quintessential prairie adapted. The black-tailed jackrabbit, Lepus californicus, is widely distributed across México and the United States (Flinders and Chapman 2003; Beever et al. CLIMATE ADAPTATION The evolution of white-tailed jackrabbit camouflage in response to past and future seasonal climates Mafalda S. and Mexico, and is a mainly solitary animal. Eva’s Desert Mouse. Despite being called a rabbit, this long-eared animal is actually a hare! What’s the difference? Although hares and rabbits look similar, with small tails, big ears, and oversized hind. Although the animal proved well adapted to arid surroundings, these authors noted that L. huobi withdrawal limit unverified Cerca. The Sharp Adaptation of Porcupines Whales and Dolphins Labeling Page What Owls Eat -- The Bones of a Mouse. b. Using its keen senses of hearing and sight and its speed. The juvenile pelage is similar but paler in colour with more under fur and less developed course guard hairs (Kim, 1987). only at night d. Kingdom Animalia animals. Lemming (Brown). californicus) from 2009 to 2020. The jackrabbit’s pinnae (the visible part of an animal’s ears) are packed with small blood. Snowshoe Hare. Females and males look identical but females tend to be a little larger. 1 pt. 6 kg). ) with longer legs and ears. overview characteristics geography timeline information & media contact. Black-tailed jackrabbits measure 47-63 cm from nose to rump, the tail is between 50-112 mm and the ears are 10-13 cm long. About the Author. This animal requires. However, the black-tailed jackrabbit is much bigger, and consumes much more food at eating times. as a watery urine b. What physical and behavioral adaptations does the Black-tailed Jackrabbit have that help it survive in the chaparral biome? (Site 1) B I U S XD m x, x²Look for the jackrabbit in mountains, foothills and valleys in Northern Utah, but primarily in open areas of the higher mountains in Southern Utah. black-tailed jackrabbit. ". S. I’ve never seen this in Idaho, and have rarely seen more than one or two in a hike. His cousin the antelope jack rabbit (Lepus alleni) prefers to live in the. Typically, jackrabbits use them to hear well and as a body regulating adaptation that allows them to cool down in hotter temperatures. You can play any type of slot for free. Adult rabbits measure anywhere from 303 to 369 mm (11. They live in a world in which 95% of the landscape is. townsendii) and the black. Its relatively long tail has a black stripe, and its long brown ears have black tips. It is found throughout California and ranges from below sea level in Death Val-ley to 12,500 feet in the Sierra Nevada mountains (Orr, 1940). Black-tailed Jackrabbits are herbivores, eating plants such as sagebrush, young trees, and even cacti. The ears along with the tail are tipped with black fur. White-tailed jackrabbits have long antenna-like ears that are colored gray on the anterior half of the outside, white on the opposing half, and a dark black patch extending to the tip. ) on the southwest slopes of some of the desert mountains but seldom inhabits coniferous forests (pinyon pine and juniper areas excepted), although occasionally it may stray into them. Researchers at the University of Montana have discovered that genetic adaptation in white-tailed jackrabbits may help them survive the effects of climate change. Reaching a length around 2 ft (61 cm), and a weight from 3 to 6 lb (1. Jackrabbits have a set of adaptations that suit them to arid and semiarid environments: a spartan diet with little water, camouflage, eyes on the sides of their. When the jackrabbit gets too hot, these blood vessels widen, which promotes heat loss. The tail, chin and abdomen are white. The average adult reaches a length of 2 feet and weighs between 3 and 6 pounds. This continuous growth is an adaptation to the abrasiveness of their food and helps maintain a chisel edge on the incisors. Promiscuous: Females mate with several males, and males mate with. Black-tailed jackrabbits weigh between 3 to 9 pounds while white-tailed jackrabbits range from 6 to 10 pounds; Size plays a crucial role in the jackrabbit’s adaptation to various habitats and evasion from predators; Basic Features and Identification. 2 cm). Known as the American desert hare, settlers in the western U. 1-5 years. Hare is the common name for small, fast-running mammals in the genus Lepus of the family Leporidae and order Lagormopha, characterized by long ears and legs, large hind feet, a short and bushy tail, and young born with fur and with eyes open. The species range of black-tailed jackrarbbits, like this one in Joshua Tree National Park, overlaps with the species range of the snowshoe hare. Black-tailed jackrabbits are distinguished by black tails and ear-tips. The Black-tailed Jackrabbit is a member of the hare family. Jackrabbits are relatively large, but their size varies from species to species. In 1886, the American Coursing Club in. large ears, approximately one third of its body. 4 lb) can be successfully taken by a pack of harris hawks. Its ears and the top of the tail are tipped in black. It has peppery brown fur and a black stripe that runs down its back. Jackrabbits can control the amount of blood that flows through their ears by widening their blood vessels in response to rising temperatures. We show that light versus dark seasonal pelage in white-tailed jackrabbits (Lepus townsendii) tracks snow cover and is primarily determined by genetic variation at endothelin receptor type B (EDNRB), corin serine. S. , A phenotype is a physical characteristic, while a genotype is the actual combination of alleles (Aa, AA, or aa). The large ears of this hare help it to lose heat and thereby cooling its body temperature. Its fur is a dark buff color peppered with black, and its black-tipped ears are almost the same length as its hind feet. coloration differentiates them from the 7 other rabbits and hares found here. 2 cm) when fully grown. It has. They usually have taller hind legs and longer ears. The Black-tailed Jackrabbit is a Moderate-sized animal of the Rabbit species, featured in Red Dead Redemption 2 and Red Dead Online. The average weight of two male specimens from Montana was 2. It has long slender front legs and large hind feet that can be 5 inches in length. The throat, ventral surface and tail are white. The species has a strong preference for wet areas, and it will take to the water and. Its fur is buff-colored to blend in with the arid environment. Male antelope jackrabbits tended to have larger home ranges than females, which is similar to black-tailed jackrabbits and Tehuantepec jackrabbits (Farías et al. It does not have to sweat or pant, both of which shed water – important. A veterinary laboratory confirmed the presence of Rabbit Hemorrhagic Disease virus type 2 in a wild black-tailed jackrabbit that was among 10 jackrabbits found dead on a property near Palm Springs. Physical adaptations: Ears: These animals exhibit long ears. The rabbit is not white all year, changing from its winter white. White-tailed jackrabbits are more numerous in the northern parts of their range, and aggregations of more than 100 have been reported. Mammals make up less than 1% of all animals on earth, but they include some of the most well-known species. Black-tailed jackrabbits are distinguished by black tails and ear-tips. Jackrabbits are herbivores able to thrive on some of the most defended and unappealing plants around them. Native black-tailed jackrabbit populations occur from central Washington east to Missouri and south to Baja California Sur and Zacatecas []. White-tailed jackrabbit range. Jackrabbits are strict vegetarians. The white-tailed jackrabbit is abundant throughout most of the Western United States including some Midwest states as well. 4x TC at 280mm, natural light, not baited. 6 Winter coat color: White Intermediate Brown or Gray B Genome-wide White-sided jackrabbit Black-tailed jackrabbit Snowshoe hare. These animals have excellent hearing and can swivel them around to better pinpoint sounds. They can be anywhere from 16-28 inches, with a 2-5 inch tail. Its tail grows to lengths of 1 to 4 in (2. Eventually the name was shortened to jackrabbit. 5 to 10. Thurman 3,. . These have long leg and ears also exhibit fur on their body. The black-tailed jackrabbit habitat involves large areas with almost no trees and black tailed jackrabbit adaptations mean they can survive in hot climates. Ones is a very light gray and the other is black. Tail: WHITE on top and below. Male jackrabbits can weigh from 9-11 pounds, and females 11-13 pounds. The brownish or grayish ears are 2. 5 C) after its blood vessels dilate. This adaptation is what allows them to thrive in such inhospitable areas. Based on what you can see in the images, which of these hares is adapted for a cald climate?The black-tailed jackrabbits (Lepus californicus) most identifying feature is its huge ears. Reaching a length around 2 ft (61 cm), and a weight from 3 to 6 lb (1. The antelope jackrabbit has a white belly, light grey sides, a back peppered with black, and orange coloration on the neck and chest. Bergmann's and Allen's rules apply to many animals, not just humans. User: Which of the following cities has caused the most damage to its coastline due to rapid urban development and tourism construction? A. The head and back are usually a mix of dark brown, rusty brown, or black. Studying and skinning the Black-tailed Jackrabbit is required for the "Zoologist" and "Skin Deep" Achievements. The tail, which gives the hare its common name, it white all year round with a dusky stripe on the dorsal side. Movements, density, and mortality in a black-tailed jackrabbit population. This species is positively associated, in terms of abundance and distribution, with grazing by domestic livestock (Flinders and Chapman 2003s, Brown et al. Ferreira1,2,3,4*†, Timothy J. 1965, Bartel et al. Its tail grows to lengths of 1 to 4 in (2. They feed on cactus, sagebrush, mesquite, grasses, and crop plants. In conformation, it is much like the white-tailed jackrabbit. Class Mammalia (“breast”): Bats, cats, whales, horses, humans . 3C; fig. Northern Phainopepla. It has long slender front legs and large hind feet that can be 5 inches in length. A black-tailed jackrabbit is a hare found in the south and western parts of the United States as well as in Mexico. The black-tailed jackrabbit has long ears with black tips and very long front and rear legs. nearctic native Habitat Black-tailed jackrabbits inhabit desert scrubland, prairies, farmlands, and dunes. What physical and behavioral adaptations does the black-tailed jackrabbit have that help it survive in the cha… Get the answers you need, now! asfah839 asfah839 21. 2 cm) when fully grown. Dec 23, 2017. Alternatively, negative allometric scaling in the musculoskeletal 456 system may occur as seen in goats (Main & Biewener 2004) and jackrabbits (Carrier 1983). The Black-tailed Jackrabbit, although referred to as a rabbit, actually is a hare based on its long ears and feet and precocial young. The antelope jackrabbit has a white belly, light grey sides, a back peppered with black, and orange coloration on the neck and chest. When the jackrabbit gets too hot, these blood vessels widen, which promotes heat loss. Adaptations. storing water b. 6 to 4. The black-tailed jackrabbit’s other name—the desert hare—gives it away. 8 in) in length, brown above and white below. Their buff-colored coats help them blend into the tan landscape. Habitat How? Well, those big ears are full of blood vessels. They become active at dusk and throughout the night. Size: Black-tailed jackrabbits are large weighing 3-6 pounds and around 2 feet long. Trending Questions . A popular prey for a variety of mammals and birds, the jack rabbit confuses. Although antelope jackrabbits are primarily crepuscular, however, observers often saw animals moving throughout the day, especially in the afternoon as the sun began to set. They sleep away the hottest part of. The black-tailed jackrabbit is the most abundant, widely distributed jackrabbit in North America, and is primarily found in the southwest. The antelope jackrabbit is so named because it has a patch of white fur on its flanks that it can flash on one side or the other as it zigs and zags, running from a predator, much as the pronghorn antelope does. 6 kilograms for four non-pregnant females (Foresman 2012b). It has long slender front legs and large hind feet that can be 5 inches in length. Animal Adaptations: Lesson for Kids 3:20 Farm Animals for Kids: Facts & Uses 3:18 Zoo Animals: Lesson for Kids.