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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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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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A luna moth perches on a leaf, its bright green wings folded over its body. Suddenly the insect spreads its wings to reveal their great size. This moth’s wingspan can stretch four and a half inches—that’s about the same length as an iPhone. CATERPILLAR CRAVINGS Found only in North America, the luna moth starts out as a very hungry caterpillar. Newly hatched, this caterpillar constantly munches on the leaves of walnut, hickory, sweet gum, and paper birch trees. After about a month of filling up on these plants, the caterpillar builds a cocoon. The insect lives inside for about three weeks, then emerges as a moth. The eye-catching critter is easily recognizable because of its wings. But that’s not the luna moth’s only interesting feature. The insect doesn’t have a mouth or a digestive system. That’s because it only lives for about a week after leaving the cocoon, and it doesn’t ever eat. BAT AWAY Although luna moths don’t have an appetite, they’re a favorite snack for bats. To protect themselves from these predators, the moths spin the tails of their wingtips in circles. This disorients the bats so much that the moths are often able to make a getaway. Guess you could say they’re winging it! Text by April Capochino Myers
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These insects get their name because they have very long front legs that they hold in a position that reminds people of praying. There are about 1,800 species of praying mantids around the world. People often refer to any mantid as a praying mantis, but mantises are part of a smaller group within the mantids. Praying mantids are carnivores, eating mainly insects and other small animals. Many gardeners and farmers welcome mantids, because the insects they eat are often pests that hurt crops. In addition to insects such as crickets and grasshoppers, mantids eat spiders, frogs, lizards, and even small birds. Praying mantids have long necks topped by a triangular head. They can turn their heads 180 degrees—an entire half circle. They’re well-camouflaged, adapting colors that help them blend with plants. Some also have amazing body shapes that make them look like leaves or branches. Their front legs have rows of sharp spines to help them hold on to their prey, which they usually begin to eat head first!
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California sea lions live on the western coast of North America from the Baja California peninsula in Mexico to British Columbia. These semi-aquatic mammals feed on fish, squid, and shellfish. They are generally found in open water, where they prefer to fish, but are sometimes found in rivers near the coast as well. These sea lions are an intelligent and social species. They travel in groups of 12 or more, and hang out on man-made structures such as piers and jetties. They gather on remote sandy beaches and rocky areas to breed. During breeding season, males claim and defend their territories. Mothers usually give birth to a single pup after a gestation period of 11 months. The pups are able to swim at birth, although young pups stay on the beach rather than venturing into the water. California sea lions are usually dark brown, although some females can appear tan. Pups are born with a dark, black-brown coat. The California sea lion is faster than any other sea lion or seal in the world. They can dive to depths of 900 feet, and can stay underwater for nearly ten minutes without breathing by slowing their heart rate. Text by Sara Zeglin / NGS Staff
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Blue marlins are among the largest, fastest, and most recognizable fish in the world. Their cobalt blue and silvery white bodies and spear-shaped upper jaws make this big fish stand out in a big ocean. Just how big is a blue marlin? Female blue marlins can grow up to 14 feet (4.3 meters) in length and can weigh more than 1,985 pounds (900 kilograms)! This incredible predator lives a solitary life from the time it is born. The mother lays her eggs in the open water and they float along until hatching with no parental care. From then on, the fish spends most of its life alone, far from land, in the warm surface waters of the Atlantic, Pacific, and Indian Oceans. They can swim long distances and will follow warm ocean currents for hundreds and even thousands of miles. Blue marlins usually feed at the surface where the water is warm, but they have been known to dive deep to feast on squid. To catch prey, blue marlins swim through dense schools of mackerel and tuna at full speed, slashing their upper jaw. They go back to the school to eat their stunned victims.
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An American goldfinch soars through the warm spring air, it’s yellow feathers reflecting the sun. Suddenly the bird opens its mouth and chirps a call that sounds like “po-ta-to-chip.” This flier isn’t looking for a salty snack. It’s using this vocalization to communicate with its flock. The bird flies on, continuing its delicious call.
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Snowy plovers are small shorebirds that dash in and out of waves at the beach. While it looks like they are playing, these chunky little white birds are actually chasing after a meal of small insects and crustaceans. These small birds have rounded heads with steep foreheads and short necks. Their bills are black and they have large eyes. They have short black legs and dark gray to black feet. As plovers mature, their feathers change. Typically, their feathers are snowy white, hence their name, with black, brown, and gray markings on wings and head. They have patches of brown or black on their shoulders. Snowy plovers feast on beetles, flies, marine worms, crabs, clams, sand hoppers, seeds, and aquatic insects. While they search for food plovers will run, stop, look, and then peck and poke at plants and the sand. Plovers will run into swarms of flies with their bills open and snapping, trying to grab a bite. They nest on the sand on sparsely vegetated coastal beaches and lakeshores and also nest near man-made wastewater ponds and reservoirs. They often line their sand nests with seashells. Many sandy beaches are raked to make them attractive to humans and beach grasses are planted to control beach erosion. As a result, plovers‘ breeding numbers have decreased as their beach habitats and breeding areas are used for fun and recreation. Both parents will take care of the large eggs, but females often take over day duty and the males take over at night. Newly hatched snowy plover chicks look like fluffy white cotton balls.
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These enormous fish are found in tropical oceans around the world.
Like all sharks, whale sharks don’t have bones.