Dein Suchergebnis zum Thema: Online

Crouching on a tree branch, a hairy animal that looks like a cross between a raccoon and a rat lifts a long finger and taps on the trunk. It’s not politely knocking to see who’s home. Instead it’s trying to locate hollow spots beneath the bark where insects live. (It can tell that it’s found a cavity by the sound of the tapping.) Once it detects a hollow, the animal rips away the bark with its teeth and gobbles up the bugs. This curious creature is known as an aye-aye. FREAKY FINGERS Aye-ayes can be found only in the forests of Madagascar, an island nation off the coast of Africa. The animals rarely descend from their treetop digs to the forest floor. Only active at night, they spend the day snoozing on branches in nests made of leaves. When darkness falls the creatures forage for food in the treetops. In addition to bugs, aye-ayes feast on fruit such as mango, scooping pulp from the juicy meal with their bony fingers. Without its distinct digits, snagging grub would be much harder for the aye-aye. And the animal’s fingers aren’t the only funny feature that helps it survive in the wild. Big, yellow eyes let it see in the dark. Giant, sensitive ears help the animal detect prey. And a long, bushy tail allows the aye-aye to balance as it scampers along tree branches. IT’S ALL RELATIVE The aye-aye’s odd traits may be useful to the animal. But they’ve also caused confusion. The animal’s rat-like teeth and squirrel-like tail led scientists to first assume that it was a rodent. But these animals are actually primates—the same group of species that humans belong to! With its weird looks and oddball behavior, the aye-aye is one relative with a serious range of strange. Text by Andrea Silen / NGS Staff
Legal Terms of Use Privacy Policy Your California Privacy Rights Children’s Online

Legal Terms of Use Privacy Policy Your California Privacy Rights Children’s Online

Jellyfish have drifted along on ocean currents for millions of years, even before dinosaurs lived on the Earth. The jellylike creatures pulse along on ocean currents and are abundant in cold and warm ocean water, in deep water, and along coastlines. But despite their name, jellyfish aren’t actually fish—they’re invertebrates, or animals with no backbones. Jellyfish have tiny stinging cells in their tentacles to stun or paralyze their prey before they eat them. Inside their bell-shaped body is an opening that is its mouth. They eat and discard waste from this opening. As jellyfish squirt water from their mouths they are propelled forward. Tentacles hang down from the smooth baglike body and sting their prey. Jellyfish stings can be painful to humans and sometimes very dangerous. But jellyfish don’t purposely attack humans. Most stings occur when people accidentally touch a jellyfish, but if the sting is from a dangerous species, it can be deadly. Jellyfish digest their food very quickly. They wouldn’t be able to float if they had to carry a large, undigested meal around. They dine on fish, shrimp, crabs and tiny plants. Sea turtles relish the taste of jellyfish. Some jellyfish are clear, but others are in vibrant colors such as pink, yellow, blue, and purple, and often are luminescent. The Chinese have fished jellyfish for 1,700 years. They are considered a delicacy and are used in Chinese medicine.
Legal Terms of Use Privacy Policy Your California Privacy Rights Children’s Online

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.
Legal Terms of Use Privacy Policy Your California Privacy Rights Children’s Online

A three-foot-deep watering hole in northeast India hums with buzzing insects and chirping birds. Suddenly seven Asian elephants stomp through the grass surrounding the pool and splash into the water. It’s bath time for the herd. THE BIGGER THE BETTER Asian elephants live in the tropical forests and grasslands of Southeast Asia. They’re a little smaller than African elephants but can grow nine feet tall and weigh nearly six tons. That’s heavier than two medium-size cars! Even newborns are on the hefty side, weighing some 200 pounds. Given their size it’s no surprise that these guys are big on food. Adults can eat 300 pounds in one day, nearly 75 times what the average human eats! An Asian elephant’s ideal meal includes roots, grasses, fruit, and bark. Much of an Asian elephant’s time is spent searching for grub. In fact the animal may travel 50 miles a day to find food. Asian elephants also enjoy taking dips in the water. To cool down their backsides, the animals will fill their trunks with water and spray it over themselves like a hose. SOCIAL NETWORK Asian elephants are gentle and super-social. Related females live with their young in herds. (Adult males go off on their own.) To communicate with each other they use rumbles, bellows, growls, and moans. Some of their vocalizations can be heard more than a mile away. Talk about a long-distance call! Text by Andrea Silen / NGS Staff
Legal Terms of Use Privacy Policy Your California Privacy Rights Children’s Online

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.
Legal Terms of Use Privacy Policy Your California Privacy Rights Children’s Online

Snow leopards are extreme athletes with some wizard-like abilities. Find out more about these big cats’ amazing skills.
Legal Terms of Use Privacy Policy Your California Privacy Rights Children’s Online

A caracal crouches in the tall grass, eyeing a bird perched on a nearby shrub. Suddenly the wild cat bursts from her hiding spot and bolts toward the fowl. As the bird takes off, so does the caracal. She leaps up six feet and swats her prey with her paw, causing it to fall to the ground. Then the cat scoops up the bird in her mouth. It’s dinnertime. SOLO CAT Caracals live on rocky hills or grasslands in the Middle East, Africa, and south Asia. The animal is one of more than 30 species of small wild cats. Most caracals grow about three feet long and can weigh over 40 pounds. The feline is usually most active after sunset. And this cat likes its me-time—adults spend much of their days alone, hunting for birds, rodents, rabbits, and gazelles. HUNTING AND HUGGING The body of a caracal is built for sneak attacks. Caracals are superfast, and with footpads cushioned by stiff fur they make practically no noise as they sprint toward targets. The animals’ strong hind legs allow them to jump six feet in the air—the height of a tall adult human. Tufts of hair on the tips of a caracal’s ears may enhance their hearing, making it easier for the cat to listen for prey. These hunters have a softer side too. Mom caracals (which usually have three babies in each litter) cuddle with their young. And the babies cuddle each other too. See, even ninjas need to snuggle sometimes. Text by April Capochino Myers
Legal Terms of Use Privacy Policy Your California Privacy Rights Children’s Online

Temperatures may cool down during the fall season, but the fun is just heating up. Find out why autumn is excellent.
Legal Terms of Use Privacy Policy Your California Privacy Rights Children’s Online

Adélie penguins breed and raise their young on the continent of Antarctica. In September and October—springtime in that part of the world—thousands of Adélies gather on the rocky Antarctic shoreline. The huge gatherings are called colonies. Adélie penguins build nests by scooping out areas in the ground. The female usually lays two eggs in the nest. Adélie penguin eggs hatch in December. In the Antarctic winter, the Adélie penguins live at sea. Both parents care for the eggs. While one stays behind keeping the eggs warm and safe from predators, the other parent heads out to sea to eat. They feast mainly on krill, tiny shrimplike animals, but also eat fish and squid. Parents take turns caring for their youngsters after they hatch until the chicks are about three weeks old. At that point, both parents may leave to forage for food while the chicks gather in the safety of a large group of other young penguins. These groups of young Adélies are called crèches. By March, when Adélie chicks are about nine weeks old, their downy baby feathers have been replaced by waterproof adult feathers. They plunge into the sea, and start hunting for food on their own. Like other penguin species, Adélies are excellent swimmers. They’re powerful and graceful in the water, with torpedo-shaped bodies that pierce through the water. Their modified wings help propel them through water instead of air. These birds are swimmers, not fliers. Check out the book Penguins vs. Puffins for more about these amazing birds! Watch a YouTube playlist all about penguins.
Legal Terms of Use Privacy Policy Your California Privacy Rights Children’s Online