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Black-tailed jackrabbits are not actually rabbits, but are hares. Hares are born with fur and are larger than rabbits. They usually have taller hind legs and longer ears. These speedy animals are capable of reaching 40 miles (64 kilometers) an hour. They have powerful hind legs that can propel them on leaps of more than 10 feet (3 meters) . They use these leaps and a zigzag running style to evade their many predators, including coyotes. Jackrabbits produce a lot of young called leverets or bunnies. Females give birth to several litters a year, each with one to six young. The young mature quickly and require little care from their mothers. While the endangered status of most species is least concern, the Tehuantepec jackrabbit is considered near threatened. Other species of jackrabbits live in Mexico, the United States, and Canada.
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Picture a camel. Now take away a hump (or two). Finally, shrink it down in size and place it in South America, living as far south as Tierra del Fuego. What do you end up with? A guanaco. Guanacos are related to camels, as are vicunas, llamas, and alpacas. But they live in South America, while camels are found in Africa and Asia. Guanacos and vicunas are wild animals, but llamas and alpacas have been domesticated, like cats and dogs, and were probably bred from guanacos. They’re slender animals with pale brown backs, white undersides, short tails, large heads, very long necks, and big, pointed ears. They live in groups of up to ten females, their young, and a dominant male adult. Unattached bachelor males form herds of their own—these can include as many as 50 or more animals. When a female guanaco gives birth, her newborn, known as a chulengo, is able to walk immediately. Chulengos can keep up with the herd right away. Guanacos live on land high in the Andes mountains—up to 13,000 feet (3,962 meters) above sea level—as well as on the lower plateaus, plains, and coastlines of Peru, Chile, and Argentina. Guanacos were once over hunted for their thick, warm wool. Now they thrive in areas protected by law.
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Harp seals spend most of their time diving and swimming in the icy waters of the North Atlantic and Arctic Oceans. These sleek swimmers often hunt for fish and crustaceans at 300 feet (90 meters) and may dive to nearly 1,000 feet (300 meters). They are able to remain submerged for up to 15 minutes. During mating season, females form large colonies on floating ice and give birth to young. Older seals return annually to pack ice to molt. They lose their pelts and top layers of skin and grow a new fur coat every year. Harp seals are sometimes called saddleback seals because of the dark, saddlelike marking on the back and sides of their light yellow or gray bodies of the adults. Baby seals are born on pack ice floating in the North Atlantic and Arctic Oceans. Harp seal mothers are able to identify their babies by their smell. The pups don’t have any blubber at birth, but quickly gain weight nursing on high-fat mother’s milk. When the pups reach about 80 pounds (36 kilograms), their mothers stop nursing them. The pups go without food for about six weeks and can lose about half their body weight until they dive in and begin to hunt for themselves. The young seals are famous for their snowy white coats.
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During the mating season, male blue-footed boobies strut around with exaggerated movements that show off their fabulous blue feet. Females tend to pick the males with the bluest feet as their mates. Parents take care of their chicks feeding and protecting them—until they’re about two months old. At that point, young boobies can survive on their own. Blue-footed boobies sleep at night, generally on land, and feed at sea during the day. Sometimes boobies feed in a group. They often fly far out to sea to look for their prey—small fish such as anchovies. The birds either zip underwater for fish from a floating position on the water’s surface or make awesome dives from as high as 80 feet (24 meters) in the air. Once it spots a school of fish, the bird folds those wings back, becoming a streamlined, torpedo-shaped predator. The booby dives into the water among the school of fish, using its long beak to grab dinner.
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Christmas Island red crabs are famous throughout Australia and the world for their bright red color and for their spectacular annual migration to the sea. Millions of crabs become rivers of red as they move from the island’s interior rainforests to the ocean to breed and lay eggs. During migration, red crabs climb over and around obstacles in their way, following the same migration paths every year. Christmas Island red crabs live on Christmas Island in the Indian Ocean off Australia’s northern coast, about 240 miles (380 kilometers) south of Java, Indonesia. Red crabs must keep their bodies moist, so they wait for the rainy season to provide conditions that are ideal for the difficult journey. A single female can lay up to 100,000 eggs.
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Bull sharks are among the most dangerous sharks in the world, according to many experts. This is because they’re an aggressive species of shark, and they tend to hunt in waters where people often swim: along tropical shorelines. Bull sharks live throughout the world, in shallow, warm ocean waters. They’ve been known to swim up into freshwater rivers. Humans are not part of a bull shark’s normal prey. Bull sharks will eat almost anything, but their diet consists mainly of fish. They also sometimes eat dolphins and sea turtles. Bull sharks even eat other sharks. They hunt during the day and at night. Sharks must keep salt in their bodies to survive, and most can live only in salt water. But bull sharks have developed special adaptations—the way their kidneys function and special glands near their tails—that help them keep salt in their bodies even when they’re in freshwater. Scientists are still studying these sharks to figure out why they developed this unusual ability.
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Northern Mockingbird
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In its native range—from the southern United States to northern South America—the cane toad is, well, just a big, ordinary toad. It hatches from an egg laid in water, begins its life as a tadpole, and eats pesky insects. Cane toads have poison that can kill animals that try eating them. Predators in the toad’s original range—including caimans, certain snakes, eels, and fishes—find cane toads tasty. Some are immune to their venom; others avoid the most venomous parts and can tolerate the venom they do eat. Cane toads are active at night. In late March, the males begin calling their mates. Once a male attracts a female, they mate as the female lays her eggs. She lays from 4,000 to 36,000 eggs at a time in the water of a stream or pond. Tadpoles hatch from the eggs within about three days. As tadpoles, cane toads eat algae and other plants that grow in water. Cane toad tadpoles metamorphose, or change, into fully formed frogs in 12 to 60 days.
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If you live in the contiguous United States, you’ve almost certainly seen (or heard!) an American crow. Crows range from southern Canada throughout the United States. As an adult, this bird is entirely black from bill to tail, except for its brown eyes. Adult crow feathers have a glossy sheen. These noisy birds are often recognizable by their distinctive, loud cry, called a caw. They are often mistaken for the common raven, but ravens are larger, have differently shaped bills, pointed wings and tails, and hoarser cries. American crows often live in family groups. Both members of a breeding pair help build the nests, and the female crow usually lays four or five eggs in the spring or summer. After about five weeks in the nest, the young birds begin learning how to fly and catch prey. Crows sometimes stay near the place where they were born to help raise other young crows. Crows gather in large groups during the winter. They congregate late in the day in areas with large trees. This behavior is known as winter roosting. Crows will eat almost anything, from insects and small animals such as frogs to fruit and nuts. They prefer open areas with access to trees and can sometimes be found around vegetable gardens. Crows also frequently live in suburban neighborhoods and in parks. Crows are considered to be very intelligent birds. Text by Sara Zeglin / NGS Staff
Amazing Animals Watch to discover interesting facts about animals from all over

In the animal kingdom, these mothers rule! Check out five marvelous moms of the wild.
Best of all, elephant moms give loving pats with their long noses.