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Flamingos are famous for their bright pink feathers, stilt-like legs, and S-shaped neck. When a flamingo spots potential dinner—favorite foods include shrimp, snails, and plantlike water organisms called algae—it plunges its head into the water, twists it upside down, and scoops the fish using its upper beak like a shovel. They are able to „run“ on water, thanks to their webbed feet, to gain speed before lifting up into the sky. Flamingos build nests that look like mounds of mud along waterways. At the top of the mound, in a shallow hole, the female lays one egg. The parents take turns sitting on the egg to keep it warm. After about 30 days, the egg hatches. Flamingo young are born white, with soft, downy feathers and a straight bill. The bill gradually curves downward as the flamingo matures. Both parents take care of the newborn flamingo, feeding it a fluid produced in their digestive systems. The young leave the nest after about five days to join other young flamingos in small groups, returning to the parents for food. The parents identify their chick by its voice. After about three weeks, the adults herd young flamingos into large groups called crèches where they start to look for food on their own. Most flamingo species are not endangered, although the Andean flamingo is listed as Vulnerable, and the Chilean, Lesser, and Puna flamingos are Near Threatened.
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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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When a great white shark is born, along with up to a dozen siblings, it immediately swims away from its mother. Born on the east and west coasts of North America, the south of Africa and southwest Australia, baby sharks are on their own right from the start. Their mother may see them only as prey. At birth the baby shark is already about 5 feet (1.5 meters) long; as it grows it may reach a length up to four times that. The pup (which is what a baby shark is called) will live its life at the top of the ocean’s food chain. But before it grows larger, the pup must avoid predators bigger than it is—including other great white sharks. Many baby sharks do not survive their first year. Young great white sharks eat fish (including other sharks) and rays. As they grow, the sharks’ favorite prey becomes sea mammals, especially sea lions and seals. Sharks count on the element of surprise as they hunt. When they see a seal at the surface of the water, sharks will often position themselves underneath the seal. Using their tails as propellers, they swim upward at a fast sprint, burst out of the water in a leap called a breach, and fall back into the water with the seal in their mouths. They can smell a single drop of blood from up to a third of a mile (0.53 kilometers) away. Sharks don’t chew their food; they rip off chunks of meat and swallow them whole. They can last a month or two without another big meal.
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Balanced on a rock in the middle of a river, a black bear lowers her head to the water and … chomp! A wriggling salmon is no match for her strong jaws. She’s spent the summer eating berries and roots—now she’s eating all the salmon she can catch to gain as much weight as possible. She needs enough stored fat for her body to make milk for newborn cubs this winter.
This way, they don’t have to leave their dens and hunt for food in the bitter cold

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The ostrich is the tallest and the heaviest of all birds. While the huge ostrich is a bird, it does not fly. Instead it runs. One stride can cover up to 16 feet (4.9 meters)—about the length of a mid-size family car! The bird is speedy, too. It can run just over 40 miles (64 kilometers) an hour for a short distance, and can keep up a speed of more than 30 miles (48 kilometers) an hour over longer distances. The ostrich uses its short wings for balance, holding them outstretched when it runs. Strong legs can also be used for self-defense. An ostrich will kick with a force mighty enough to kill a lion. When danger approaches, an ostrich will often lie low to hide, stretching its neck along the ground. Its feather colors blend with the sandy soil where it lives. From far away, it looks like the ostrich has buried its head in the sand. Many people thought that was what ostriches did when they were trying to hide, but that is a myth. Ostriches live near grazing animals such as wildebeest, antelopes, and zebras. The grazers stir up insects and rodents for the ostriches to eat, and the ostriches warn the grazers to dangers such as approaching lions. An ostrich group, called a herd, numbers about 12 individuals. Male ostriches compete for control of a group of several females. A herd has a dominant male and a dominant female. She mates only with him, though he may mate with other females as well. All the egg-laying females, called hens, lay their eggs in the nest of the dominant female. Then that female—whose eggs are positioned in the center of the nest, the most well-protected spot—and her mate take care of all the eggs in that one nest. Each egg can be up to 6 inches (15 centimeters) long and weigh 3 pounds (1.5 kilograms)!
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When an elephant drinks, it sucks as much as 2 gallons (7.5 liters) of water into its trunk at a time. Then it curls its trunk under, sticks the tip of its trunk into its mouth, and blows. Out comes the water, right down the elephant’s throat. Since African elephants live where the sun is usually blazing hot, they use their trunks to help them keep cool. First they squirt a trunkful of cool water over their bodies. Then they often follow that with a sprinkling of dust to create a protective layer of dirt on their skin. Elephants pick up and spray dust the same way they do water—with their trunks. Elephants also use their trunks as snorkels when they wade in deep water. An elephant’s trunk is controlled by many muscles. Two fingerlike parts on the tip of the trunk allow the elephant to perform delicate maneuvers such as picking a berry from the ground or plucking a single leaf off a tree. Elephants can also use its trunk to grasp an entire tree branch and pull it down to its mouth and to yank up clumps of grasses and shove the greenery into their mouths. When an elephant gets a whiff of something interesting, it sniffs the air with its trunk raised up like a submarine periscope. If threatened, an elephant will also use its trunk to make loud trumpeting noises as a warning. Elephants are social creatures. They sometimes hug by wrapping their trunks together in displays of greeting and affection. Elephants also use their trunks to help lift or nudge an elephant calf over an obstacle, to rescue a fellow elephant stuck in mud, or to gently raise a newborn elephant to its feet. And just as a human baby sucks its thumb, an elephant calf often sucks its trunk for comfort. One elephant can eat 300 pounds (136 kilograms) of food in one day. People hunt elephants mainly for their ivory tusks. Adult females and young travel in herds, while adult males generally travel alone or in groups of their own.
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There are few animals on Earth who work as well together as meerkats. These squirrel-size members of the mongoose family live in groups as large as 40, and everyone in the mob participates in gathering food, keeping a look out for predators, and taking care of the babies. Meerkats live in the deserts and grasslands of the southern tip of Africa. They are extremely cute, with bushy, brown-striped fur, a small, pointed face, and large eyes surrounded by dark patches. They average about 20 inches (50 centimeters) long, including their tail. These extremely social animals live together in burrows, which they dig with their long, sharp claws. Living underground keeps mob members safe from predators and out of the harsh African heat. These burrows can be 16 feet (5 meters) long and contain multiple entrances, tunnels, and rooms. A group will use up to five separate burrows at a time. Meerkats only go outside during the daytime. Each morning, as the sun comes up, the mob emerges and begins looking for food. They use their keen sense of smell to locate their favorite foods, which include beetles, caterpillars, spiders, and scorpions. They’ll also eat small reptiles, birds, eggs, fruit, and plants. Back at the burrow, several babysitters stay behind to watch over newborn pups. This duty rotates to different members of the mob, and a sitter will often go all day without food. The babysitters‘ main job is to protect pups from meerkats in rival mobs, who will kill the babies if they can. While the rest of the mob forages for food, one or more meerkats, called a sentry, will find a high point, like a termite mound, and perch on their back legs, scanning the sky and desert for predators like eagles, hawks, and jackals. A sentry who senses danger will let out a high-pitched squeal, sending the mob scrambling for cover. Meerkats dig safe places called bolt-holes throughout their foraging area, where they can hide in an emergency. If caught in the open by a predator, a meerkat will try to look fierce, lying on its back and showing its teeth and claws. If a group is confronted, the meerkats will stand together, arching their backs, raising their hair, and hissing. This sometimes fools an attacker into thinking they are a single large, vicious animal. Meerkats are abundant throughout their range and are not considered threatened or endangered. But they live a very difficult life in the African desert, constantly threatened by hungry predators, rival meerkats, drought, and burrow-flooding rainstorms.
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Some jaguars are so dark they don’t seem to have spots.