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Goblin Shark
They have narrow snouts and fanglike teeth.

Also known as woodchucks, groundhogs spend much of their days alone, foraging for plants and grasses and digging burrows up to 66 feet long.
(They actually have separate bathrooms!)

These colorful fish live in and around the tropical reefs of all the world’s oceans.
Fun facts • Some species of parrotfish have scales strong enough to stop a spear

Beavers are the largest rodents (gnawing animals) in North America and the second largest in the world, behind the South American capybara. Beavers are powerful swimmers that can swim underwater for up to 15 minutes. As the beaver dips underwater, the nose and ears shut to keep water out. Transparent inner eyelids also close over each eye to help the beaver see.
Comeback critters See how animal species in trouble have come back from the brink

Get the inside scoop on how these brown bears pack on the pounds to prepare for winter, and see before-and-after pictures of fat bears!
That’s why they have to constantly chow down in the months before their light hibernation

Christmas Island red crabs are famous throughout Australia and the world for their bright red color and for their spectacular annual migration to the sea. Millions of crabs become rivers of red as they move from the island’s interior rainforests to the ocean to breed and lay eggs. During migration, red crabs climb over and around obstacles in their way, following the same migration paths every year. Christmas Island red crabs live on Christmas Island in the Indian Ocean off Australia’s northern coast, about 240 miles (380 kilometers) south of Java, Indonesia. Red crabs must keep their bodies moist, so they wait for the rainy season to provide conditions that are ideal for the difficult journey. A single female can lay up to 100,000 eggs.
Comeback critters See how animal species in trouble have come back from the brink

Co-what-i? You may not be familiar with this fur ball, which inhabits parts of South America, Central America, and North America. But you no doubt know about the mammal’s famous family. The coati is closely related to the raccoon. And like its cousin, this mammal is the size of a large house cat, has a ringed tail, and hangs out in trees. SNOOZE AND CHEWS Unlike the nocturnal raccoon, which is active at night, the coati mostly gets its z’s when it’s dark. These animals turn treetops into bedrooms, even building comfy twig-and-leaf nests in branches for their babies. As a coati sleeps, it tucks its nose into its belly. During the day, the coati is all about snacking. It uses its long, flexible nose to probe gaps between rocks and search under piles of leaves for grub. Coatis eat insects, fruit, rodents, lizards, and small snakes. MAKE SOME NOISE Female and baby coatis eat, sleep, and travel in packs of about 30. At age two, males leave to live on their own. In groups these animals are chatty—they click, grunt, whistle, and bark as they forage for food. So while it may not be as well known as its raccoon relatives, the coati definitely lets you know it’s there. Text by April Capochino Myers
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Kangaroos possess powerful hind legs, a long, strong tail, and small front legs. Kangaroos belong to the animal family Macropus, literally „big foot.“ Thanks to their large feet, kangaroos can leap some 30 feet (9 meters) in a single bound, and travel more than 30 miles (48 kilometers) per hour. Kangaroos use their strong tails for balance while jumping. They are the tallest of all marsupials, standing over 6 feet (2 meters) tall. Kangaroos live in Eastern Australia. They live in small groups called troops or herds (“mobs” by Australians), typically made up of 50 or more animals. If threatened, kangaroos pound the ground with their strong feet in warning. Fighting kangaroos kick opponents, and sometimes bite. Female kangaroos sport a pouch on their belly, made by a fold in the skin, to cradle baby kangaroos called joeys. Newborn joeys are just one inch long (2.5 centimeters) at birth, or about the size of a grape. After birth, joeys travel, unassisted, through their mom’s thick fur to the comfort and safety of the pouch. A newborn joey can’t suckle or swallow, so the kangaroo mom uses her muscles to pump milk down its throat. At around 4 months, the joey emerges from the pouch for short trips and to graze on grass and small shrubs. At 10 months, the joey is mature enough to leave the pouch for good. Besides humans and wild dogs called dingoes, kangaroos face few natural predators. Heat, drought, and hunger due to vanishing habitat are the biggest dangers kangaroos face.
biggest dangers kangaroos face. 1:45 Eastern Gray Kangaroo Eastern gray kangaroos have

During the mating season, male blue-footed boobies strut around with exaggerated movements that show off their fabulous blue feet. Females tend to pick the males with the bluest feet as their mates. Parents take care of their chicks feeding and protecting them—until they’re about two months old. At that point, young boobies can survive on their own. Blue-footed boobies sleep at night, generally on land, and feed at sea during the day. Sometimes boobies feed in a group. They often fly far out to sea to look for their prey—small fish such as anchovies. The birds either zip underwater for fish from a floating position on the water’s surface or make awesome dives from as high as 80 feet (24 meters) in the air. Once it spots a school of fish, the bird folds those wings back, becoming a streamlined, torpedo-shaped predator. The booby dives into the water among the school of fish, using its long beak to grab dinner.
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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
Comeback critters See how animal species in trouble have come back from the brink