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The Gila monster is one of only a few poisonous lizards in the world. The Gila (pronounced HEE-luh) is the largest lizard native to the United States. Their black bodies are covered in beadlike scales with bright spots, blotches, or bands of pink, orange, or yellow, which probably warn other animals to stay away. Their bulky bodies, slow-moving stride, thick forked tongue, and snorting hisses reinforce the name Gila monster. They live in the dry, arid regions such as the Mojave, Sonoran, and Chihuahuan Deserts of the southwestern U.S. and northwestern Mexico. They are named after the Arizona Gila River Basin, where they were first discovered. Gila monsters are more likely to use their venom on a predator than on prey. They clamp their jaws down with the power of a vise grip. Then the venom in their bottom jaw flows through their grooved teeth into the victim. Although the Gila’s bite is extremely painful, no human death has been reported. Gilas are sluggish creatures that feed primarily on eggs raided from bird nests and newborn mammals, such as rabbits and squirrels. They sometimes eat quail eggs whole without crushing the shells. They spend about 95 percent of their time underground and emerge only to hunt for food or to take a sunbath. They don’t need to eat very often because they can store fat in their large tails.
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Discover the kind of engineering involved in designing pop-ups!
Find the center point of the sides of the bags and the opening.

Meet one of the first dinosaurs that scientists found.
constantly learning new things about these ancient animals—in fact, scientists find

Check out how this dino was the fiercest predator of its time.
constantly learning new things about these ancient animals—in fact, scientists find

Despite their reputation, pigs are not dirty animals. They’re actually quite clean. The pig’s reputation as a filthy animal comes from its habit of rolling in mud to cool off. Pigs that live in cool, covered environments stay very clean. Pigs are also known as hogs or swine. Male pigs of any age are called boars; female pigs are called sows. Pigs are found and raised all over the world, and provide valuable products to humans, including pork, lard, leather, glue, fertilizer, and a variety of medicines. Most pigs raised in the United States are classified as meat-type pigs, as they produce more lean meat than lard, a fat used in cooking. In the wild, pigs eat everything from leaves, roots, and fruit to rodents and small reptiles. In the United States, farm-raised pigs eat commercially made diets of mostly corn. In Europe, pigs eat barley-based diets. Pigs have sharp tusks that help them dig and fight. Farmers often take off the tusks to avoid injury to people and other pigs. Sows give birth to a litter of young called piglets. They usually nurse the piglets for three to five weeks. Piglets weaned off their mother’s milk are not called piglets but are referred to as shoats. Piglets weigh about 2.5 pounds (1.1 kilograms) at birth, and usually double their weight in one week. Fully grown, pigs can grow to between 300 and 700 pounds (140 and 300 kilograms), and sometimes much more. Pigs have poor eyesight, but a great sense of smell. The pig’s nostrils are on its leathery snout, which is very sensitive to touch. The pig uses the snout to search, or root, for food. Pigs are among the smartest of all domesticated animals and are even smarter than dogs.
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Youngsters tumble, climb, and run playing follow the leader. Another group plays a rowdy game of king of the mountain. Several adults watch the action, relaxing nearby. Is this a playground scene at school? No, guess again. It’s a lush mountain forest high in the Virunga mountains of Africa, and the playmates are young mountain gorillas under the watchful eyes of their mothers. For a long time the image most people had of a gorilla encounter included chest pounding, roaring, charging, and big, bared teeth. But researchers studying gorillas reveal a very different picture of mountain gorillas. The animals are peaceful, gentle, social, and mainly vegetarian creatures. The occasional ferocious-looking, impressive displays are generally from a male gorilla protecting his family group from a threat. A typical group is led by the biggest and strongest mature male gorilla—often the guy doing any chest pounding or charging. He’s called a silverback because the hair on a male’s back turns from black to silvery gray as he matures. This happens when he is between 11 and 13 years old. A silverback’s group normally includes a subadult male or two and a few females and their young. Mountain gorillas wander around a home range of up to 15 square miles (39 square kilometers). Mountain gorillas spend much of their time eating. Their food includes a variety of plants, along with a few insects and worms. At night the animals make a nest to sleep in. Many lightweight gorillas nest in trees, making beds of bent branches. The heavier individuals may nest in grasses on the ground. Babies snuggle with their mothers for the night. Life for mountain gorillas isn’t all peaceful. They are endangered, threatened by civil war in a small area of Africa where they live. Hunters kill them for food or trophies. Their forests are chopped down for farmland, fuel, and housing. But many dedicated scientists, park rangers, and other concerned people are working hard to protect mountain gorillas, their forests, and their way of life in the mountains.
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The Native-American woman who showed Lewis and Clark the way
Sacagawea remembered Shoshone trails from her childhood and helped the expedition find

Atlantic puffins are birds that live at sea most of their lives. They fly through the air like most birds, but they also „fly“ through the water, using their wings as paddles. As they swim, they use their webbed feet to steer, much as a boat uses a rudder.  Puffins eat small fish—such as sand eels and herring—which they hunt underwater. They generally stay underwater for 30 seconds or less, but are able to dive 200 feet deep and stay down for up to a minute. Well adapted for their home in the water, puffins are also speedy in the air. They flap their wings up to 400 times a minute, speeding along in the air at 55 miles an hour—as fast as a car on a highway (How many times can you flap your arms in one minute?) . As a puffin matures, its beak and feet change from a dull gray color to bright orange. In the spring and summer, thousands of puffins gather in colonies on the coasts and islands of the North Atlantic Ocean. They stay in colonies to limit their chances of being eaten by the herring gulls that fly overhead. At the ages of 4-6, pairs of puffins often become mates for life, finding each other at their breeding colony year after year. They show affection by rubbing and tapping beaks. The pair often uses the same burrow they used the year before. Using their beaks and claws, puffins build their burrows between two boulders or in a rocky crevice. They line the burrow with feathers and grass before laying the egg that will incubate for 42 days. A baby puffin is known as a chick or puffling. When it first hatches, it looks like a furry ball of feathers. As it gets older, it will grow sturdy and smooth feathers to help it swim and fly. Born on North Atlantic islands, pufflings leave their burrows after 45 days. They won’t return until it is their turn to lay eggs. A puffling eats so much food that both the mother and father have to supply it with fish. In one day a parent may dive 276 times, bringing back 10 fish each time. The puffling swallows the fish head first and whole. By the time the puffling leaves its burrow, each parent will have dove 12,420 times. Check out the book Penguins vs. Puffins for more about these amazing birds!
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Get pictures and fun facts about eight weird ice cream flavors.
But you won’t find feathers in the scoops—the flavors just contain the things these

Discover why this ancient predator is known as the king of the dinosaurs.
constantly learning new things about these ancient animals—in fact, scientists find