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Although native to Europe, earthworms are found throughout North America and western Asia. They do not live in deserts or regions where there is permafrost or permanent snow and ice. Typically only a few inches (7 or 8 centimeters) long, some members of this species have been known to grow to a snakelike 14 inches (35 centimeters). Earthworms‘ bodies are made up of ringlike segments called annuli. These segments are covered in setae, or small bristles, which the worm uses to move and burrow. These terrestrial worms typically dwell in soil and moist leaf litter. Their bodies are characterized by a „tube within a tube“ construction, with an outer muscular body wall surrounding a digestive tract that begins with the mouth in the first segment. As they burrow, they consume soil, extracting nutrients from decomposing organic matter like leaves and roots. Earthworms are vital to soil health and to plants growing in it because they transport nutrients and minerals from below to the surface via their waste. An earthworm can eat up to a third of its body weight in a day.
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Giraffes grow about 4 feet (1.2 meters) in their first year of life. A newborn giraffe is about 6 feet (1.9 meters) tall at birth and weighs about 150 pounds (68 kilograms). Many young giraffes, called calves, die from lion attacks during their first year of life. Once a giraffe reaches adulthood its height is often enough to protect it from lions. Adult giraffes, however, must still be careful of lions when they are bending down to drink water or rest. Usually giraffes will drink or rest in shifts so that at least one giraffe is always on the lookout for approaching predators. The giraffes‘ height and excellent vision give them a wide view of the grasslands where they live, making it easy to spot predators from a distance. Some scientists believe that other animals—such as zebras, antelope, and wildebeests—often congregate near giraffes to take advantage of their ability to see danger from a distance. The giraffe could be considered the early warning system of the African grasslands.
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Chipmunks are part of the squirrel family, and while they look similar to their bushy-tailed cousins, chipmunks are actually smaller, with alternating light and dark stripes along their cheeks and backs. There are 25 species of chipmunk, 24 of which live in North America. Chipmunks are excellent tree climbers and swimmers who live in a variety of habitats, including plains, mountains, forests, and deserts. Chipmunks like to live alone in holes or burrows called dens. Chipmunks hibernate in cold weather, which means they spend most of the winter sleeping in their dens. One chipmunk can gather up to 165 acorns in a day. In just two days, a chipmunk can collect enough food to last an entire winter, although chipmunks typically hoard much more food than necessary. Chipmunk young are born in late spring, and stay in the nest for up to six weeks. Female chipmunks have one or two litters per year, each with four or five babies. Chipmunks are 7.2 to 8.5 inches (18.5 to 21.6 centimeters) long including their tails, which can account for nearly half of their length.
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A rainbow-colored crustacean skitters along the ocean floor, adding a splash of brightness to the murky setting. The animal’s narrow, hard-shelled body sports orange, green, red, and blue hues. Known as the peacock mantis shrimp, this beautiful, seven-inch-long critter looks harmless. But the marine animal packs a punch—literally. SHRIMP SMACKDOWN Peacock mantis shrimp mostly live in shallow parts of the Indian and Pacific Oceans. The crustacean spends much of its time looking for crabs and mollusks to eat. When it finds a delicious-looking snack, the animal goes into full-on boxer mode. Springing out one of its club-like front claws, the animal delivers a swift punch to its prey. The punch is 50 times faster than the blink of an eye and strong enough to break glass! These shrimp also rely on their sparing moves to keep enemies away from burrows in the ocean floor that they use as shelters. Hovering at the opening of its burrow, a peacock mantis shrimp will strike at intruders that come too close. EYES ON THE PRIZE The crustacean has another eye-popping feature in addition to its strong punch. Its eyes—which protrude from its head and move independently—can see in two different directions at once. They can also detect colors that humans are unable to see. It’s easy to be floored by this animal’s cool traits! Watch a video of the peacock mantis shrimp. Text by Andrea Silen, NGS Staff
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These animals have a reputation for being slow—but they’ll quickly amaze you. Here are five cool things about sloths.
The three-toed sloth can actually turn its head almost all the way around!

The red-tailed hawk is a top predator. The hawks use tall perches to spot their prey in the open spaces next to highways. Red-tailed hawks also hunt from the air. As they circle and soar, they can spot a mouse from 100 feet (30 meters) up in the air—about ten stories high. When a red-tailed hawk spots a rodent, rabbit, lizard, or other prey scurrying, it swoops down and grabs its meal in its talons—the big claws on its feet. Once the hawk grabs its prey, it usually flies back up to its perch to eat it. They were named for the variety that has a brick-red tail. Male and female red-tailed hawks basically look alike, though the females are larger. Red-tailed hawks often mate for life. The pair makes a stick nest in a tree, high above the ground. They will use the nest year after year, so it grows bigger and bigger. The female hawk lays one to five eggs—which are white with brown spots. The parents take turns sitting on the eggs, keeping them warm and safe. Baby red-tailed hawks are covered with white, downy feathers. The hawk parents feed their young until the young birds can leave the nest, usually when they’re about six weeks old.
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Koalas are marsupials, related to kangaroos.
Amazing Animals Watch to discover interesting facts about animals from all over

A bald eagle’s white head may make it look bald. But actually the name comes from an old English word, „balde,“ meaning white. These graceful birds have been the national symbol of the United States since 1782. Bald eagles were on the brink of extinction because of hunting and pollution. But laws created almost 40 years ago have helped protect them, and they’ve made a comeback. Female bald eagles are a bit bigger than males. Their bodies can be three feet (one meter) long, and their wingspan can be eight feet (2.4 meters) across. That’s about the distance from the floor to the ceiling! Eagle nests are called aeries (AIR-ees). Bald eagles build their nests at the very top of tall trees so the eggs will be safe. Some parents come back year after year to the same nest, adding more sticks, twigs, and grass each time. Babies, called eaglets, are born light gray then turn brown. When they are four to five years old, they develop their normal white heads and tails. In the wild, they can live to be 35 years old or more. Bald eagles can soar over 10,000 feet (3,048 meters) high, and their great eyesight lets them see fish up to a mile (1.6 kilometers) away. When they attack, they drop down at up to 100 miles (161 kilometers) an hour! Then they glide just above the water, snag a fish with their feet, and fly off to eat it.
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Scorpions are arachnids and have eight legs like their cousins—spiders, mites, and ticks. They can quickly grab an insect with their pincers and whip their telson, the poisonous tip of their tail forward and sting their prey. They use their poison to kill prey and to defend against predators. Scorpions look like small lobsters and may be the first animals to move from water to land hundreds of millions of years ago. They have been around since before the age of the dinosaurs. Fossils of scorpions from Scotland hundreds of millions of years ago show that their appearance hasn’t changed over the millennia, but they are now half the size of their ancient ancestors. Only 30 or 40 species around the world have strong enough poison to kill a person. Each species has a special type of venom that works well against a chosen prey. Scorpions typically eat insects, but when food is scarce, they can slow their metabolism to as little as one-third the typical rate for arthropods. This technique enables some species to use little oxygen and live on only one insect per year. Such survival skills allow scorpions to live in some of the planet’s toughest environments. Researchers have even frozen scorpions overnight, only to put them in the sun the next day and watch them thaw out and walk away. However, they are burrowing animals, so in areas of permafrost or heavy grasses, where loose soil is not available, scorpions may not be able to survive.
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Hippopotamuses are large mammals found in sub-Saharan Africa. Their name comes from the Greek word for “river horse” because they’re often found in water, which helps them stay cool in the hot, tropical climate where they live.
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