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Beavers are the largest rodents (gnawing animals) in North America and the second largest in the world, behind the South American capybara. Beavers are powerful swimmers that can swim underwater for up to 15 minutes. As the beaver dips underwater, the nose and ears shut to keep water out. Transparent inner eyelids also close over each eye to help the beaver see.
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Bactrian camels have two humps on their backs where they store fat. Arabian camels, called dromedaries have only one hump, but both these types of camels use their stored fat as energy and water when they are far away from food and a freshwater source. Bactrians‘ nostrils close to block sand, and their bushy eyebrows and two rows of long eyelashes protect their eyes from blowing sand and ice. Baby camels are born with their eyes open and can run when only a few hours old. Camels move both legs on one side of the body forward at the same time, like giraffes and race horses. This is called pacing. The only truly wild camels that still exist are Bactrian camels. These herds survive in the Gobi Desert of Mongolia and China, but number less than 400. They are critically endangered in the wild.
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Chimpanzees are omnivores, meaning they eat both plants and animals. Young chimpanzees learn from observing their mothers and other adults which foods are safe to eat and where ripe food is located. For the first few months of its life, a baby chimp clings to its mother’s belly as she travels with it everywhere. After that, young chimpanzees will spend the next seven to ten years at their mothers‘ sides learning how to groom, make nests in trees, find food, and use tools. Although they normally walk on all fours (knuckle-walking), chimpanzees can stand and walk upright. By swinging from branch to branch they can also move quite efficiently in the trees, where they do most of their eating and sleeping.
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The pileated woodpecker is one of the largest woodpecker species in North America and its look is unmistakable—a large black bird with white on each side of its neck and a red crest on its head. When it flies, white flashes are visible under its wings. The sound of the pileated woodpecker’s hammering carries a long distance through the woods where they live. They drum to attract mates and to establish the boundaries of their territory—warning other males away. They use their beaks to peck and dig under bark to find carpenter ants, beetle larvae, and other insects and will often dig large, rectangular holes in trees to uncover their meals. Some holes are so big that they weaken small, young trees. The birds also strip pieces of bark from trees looking for food. Generally, however, pileated woodpeckers help keep a forest healthy by eating wood-boring insects. A nesting pair of pileated woodpeckers usually makes a nesting hole in a large, older tree. During the day, both parents take turns incubating, or sitting on, the eggs to keep them warm. At night, only the male incubates the eggs. They generally lay four eggs at a time, which take about two weeks to hatch.
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Pufferfish can inflate into a ball shape to evade predators. Also known as blowfish, these clumsy swimmers fill their elastic stomachs with huge amounts of water (and sometimes air) and blow themselves up to several times their normal size. Some species also have spines on their skin to ward off predators. Even if a predator gobbles up a puffer before it inflates, it won’t enjoy the snack. Most pufferfish contain a toxic substance that makes them foul tasting and potentially deadly to other fish. The toxin is deadly to humans. There is enough poison in one pufferfish to kill 30 adult humans, and there is no known antidote. In Japan, they are called fugu and are a very expensive, delicious treat. They are prepared only by trained, licensed fugu chefs. Most puffers are found in tropical and subtropical ocean waters, but some species live in brackish and even fresh water. Some species of pufferfish are considered vulnerable due to pollution, habitat loss, and overfishing, but most populations are considered stable.
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National Geographic Kids
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Coyotes once lived only in prairies and deserts of the western United States and in Mexico. Today they thrive almost anywhere in North America. Adaptability—that’s the main reason for the success of the coyote. A coyote is naturally adaptable because it eats such a wide range of food. If it can’t find mice or voles to eat, lizards, insects, or even garbage will do. In Native American stories coyotes are clever and tricky. Some coyotes kill calves and lambs on people’s ranches and farms. For a century people have tried to kill coyotes by using poison, traps, and guns. Still coyotes continue to thrive. This trickster of Native American tales often gets fooled—but it always bounces back. Coyotes vary in body size from 32 to 37 inches (81 to 94 centimeters). Their tails can be up to 16 inches long (41 centimeters).
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Indian peafowl are a species in a group of birds called pheasants. The males are called peacocks, while the females are called peahens. Together, they are peafowl. Peafowl are among the largest of all birds that fly. (Ostriches, emus, and other such birds are bigger, but cannot fly.) The beautiful feathers that cover the tails of a peacock are 5 feet (1.5 meters) long—longer than the bird’s body—and can be displayed in a spectacular fan of brilliant colors. These long feathers actually grow from the bird’s back not the tail. He elevates them by raising the much shorter tail feathers underneath them. Peahens are more drab than their male counterparts, with mostly brown on their back with a white belly. Females don’t have long tail feathers, but they do have a crest on their head and green neck feathers. Indian peafowl are native to India and Sri Lanka, in South Asia. They’ve been introduced to other countries, usually as exhibits in parks, zoos, and nature centers or as domestic pets. The head and body of adult peafowl range from 3 to 4 feet long and their tail can be 5 feet long.
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The Madagascar hissing cockroach is all hiss and no sting. Its alarm hiss, which sounds like a loud snake hiss, is the cockroach’s attempt to scare off intruders. The male cockroach also uses distinct hisses to attract a mate and to intimidate other male cockroaches. When defending their territory from other males, these cockroaches will hiss, push, and shove, and stand on their “toes” to show who’s boss. The male that is larger and hisses more usually wins. It is one of the largest species of cockroach in the world—adults grow to be between two and four inches (5.1 and 10.2 centimeters) long! With their thick and waxy exoskeletons, Madagascar hissing cockroaches may look like big pests, but they’re actually important to the health of the rain forest. They are detritivores, which means they eat decaying plant material and animal carcasses. They recycle nutrients back into the ecosystem.
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The giant squid is massive and when full grown can be at least 33 feet (10 meters) long. These mysterious eight-armed creatures are rarely seen by humans. Most of what we know about them comes from finding them washed up on beaches. The largest of these hard-to-find giants ever found measured 59 feet (18 meters) in length and weighed nearly a ton (900 kilograms). Giant squid, along with their cousin, the colossal squid, have beach-ball size eyes! Their eyes are the largest eyes in the animal kingdom and are about 10 inches (25 centimeters) in diameter. Their big eyes help them to spy objects in dark depths where most other animals would see nothing. Like other squid species, they have eight arms and two longer whiplike tentacles that help them bring food to their beaklike mouths. Their diet likely consists of fish, shrimp, and other squid, and some suggest they might even attack and eat small whales. They maneuver their massive bodies with fins that seem too small for the rest of their bodies. They use their funnel as a propulsion system, drawing water into the mantle, or main part of the body, and forcing it out the back.
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