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134 Results for "fish"

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Check out these fascinating fish from Africa's lower Congo River.
Hands-on

Create a flounder fish that's hard to spot!
Story

What kind of person becomes an ichthyologist, a scientist who studies fish?
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Polar bears are the top predator of the icy Arctic. But these large, furry white mammals have to work hard for their...
Video

Can poisons be used for good? Yes, and Robert will tell you why.
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For centuries, orange roughy went mostly unnoticed by humans. These fish thrived in the dark, the cold, and the inten...
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The striped bass has been a popular catch for fishermen for centuries. These fishes are known for their spiny fins an...
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California condors are the largest birds in North America. Like all vultures, condors are carrion-eaters. This means...
Game

All aboard! Hop on a submersible and explore an amazing diversity of life at the ocean floor.
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Melanie Stiassny has been fascinated by fish from the time she was a little girl living in London. Today, Melanie is...
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Discover how these deep sea creatures create their own light!
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Ian Harrison first became interested in sea life during family vacations to the southwest coast of England.
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In 1938, fishermen off the east coast of Africa pulled up a strange creature in their nets.
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For over 1,000 years, people called the Inuit lived in the Arctic. Long ago, they relied on fishing and hunting for s...
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With their white bellies and dark backs, dolphins can be found jumping above the water, swimming alongside fishing sh...
Hands-on

Make a bracelet that matches a section of DNA code from your favorite plant or animal.
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It's easy to see how the starfish got its name -- with their pointed arms, these creatures look like stars fallen to...
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These tropical freshwater fishes come in so many colors, shapes, and sizes, it's nearly impossible to sum up the fami...
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Dive into the oceans with an ichthyologist.
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With its long, dramatic crest, the giant Pteranodon longiceps is easy to recognize.
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Even though this whale of a whale weighs many tons, the humpback whale can make acrobatic leaps out of the water!
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The electric eel is long and narrow like an eel, but it is actually not an eel at all. In fact, electric eels are pro...
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Many animals and plants use color to warn predators to stay away, and the blue ringed octopus is no exception. When t...
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Animals and plants are usually adapted to survive best in particular environments, known as their habitats.
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Estuaries are places where a river meets the sea. This ever-changing ecosystem is bursting with life. Saltwater from...
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The American crocodile has lived on Earth for millions of years, but today their numbers are rapidly declining becaus...
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That toothy grin might make you think this is a crocodile or an alligator. But the Yacaré caiman is neither. Caimans...
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The whooping crane is known as the tallest bird in North America. This long legged creature has been struggling to su...
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Scientists all over the world send precious cargo to Julie Feinstein: frozen samples of animal tissues.
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The oceans are filled with creatures that use poison to survive. Some use chemical defenses to deter predators. Other...
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Confuciusornis is the earliest-known toothless, beaked bird.
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One look at Redondasaurus, and you might think it's a crocodile. After all, it has a similar long, armored body, with...
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A coral reef may look like a colorful underwater garden, but these living structures are made by thousands of tiny an...
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During the 13th and 14th centuries, a group of people called the Aztecs flourished in Mexico. They built an advanced...
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The frigid waters of the Arctic and the Antarctic may seem like hostile habitats. But a variety of marine life -- fro...
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This large dark bird is unmistakable soaring in the air along the coast.
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The snowy egret is a beautiful sight. An adult egret is distinguished by its dark slender beak, long black legs, and...
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Far beneath the ocean's surface is a mysterious world of cold temperatures, intense pressure, and almost total darkne...
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The body of a sawfish may look like a fish, but its long, flat snout sets it apart. Rimmed with razor-sharp points, t...
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If you came face to face with a pacu, what would you do? Never fear -- the pacu may look like a big and scary fish, b...
Hands-on

How do mammals move? Make flipbooks to see six different mammals in action.
Hands-on

Find out which of your traits are due to nature OR both nature and nurture. 
Hands-on

Start a field journal, and track how your favorite critter looks and behaves.
Hands-on

Find out what makes you different from a snail, a tree, or even your best friend!
Hands-on

Here's a very cool experiment that just might bring a tear to your eye. Use a blender to separate the DNA from an onion. 
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The most dazzling feature on many pterosaurs was a spectacular head crest. Tupuxuara leonardii had one of the most im...
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The giant squid is the largest invertebrate, or animal without a backbone, ever to have lived on Earth! 
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From Madagascar to Indonesia, travel around the world with Museum scientists.
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Find out where Rob has followed his born curiosity.
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Tipping the scales at more than 7 pounds, the Goliath is the largest frog in the world. Just two of these frogs weigh...
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Growing up in Argentina, Adriana Aquino loved nature, especially the ocean. As a young girl, she wondered what it wou...
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Most ocean plants and animals live near the shore, on a narrow ribbon of seafloor called the continental shelf.
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Found along tropical coastlines, thick mangrove forests were once considered a nuisance, infested with mosquitoes and...
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Plankton are the microscopic organisms of the sea. Just as plants form the basis for the ecosystem on land, phytoplan...
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The Portuguese man-of-war is actually a floating colony of individuals called polyps that are all dependent on each o...
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The Sumatran tiger is found in only one place on the Earth -- on the island of Sumatra in Indonesia. Fewer than 500 o...
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The hellbender is one of the largest salamanders in North America.
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Hundreds of years ago, European sailors placed carved mermaids on the front of their ships as figureheads and told ta...
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A firefly's light seems rare and magical. Yet there are many living things that blink, glow, flash, and glitter. The...
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Until 1828, pterosaur fossils had been found only in Germany. Then a new kind of pterosaur fossil was discovered in E...
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The first vertebrates to fly took to the skies about 215 million years ago. These creatures were neither birds nor ba...
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Most amphibians start their lives in water, and grow up to live on land. But axolotls live their whole lives in water...
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California sea lions are playful, intelligent, and fast—in and out of water. Their large flippers enable them to leap...
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Like humans, animals need to communicate with each other. Through sight, touch, sound, smell, and even electrical pul...
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With its furry coat, friendly face, and playful nature, the sea otter is perhaps one of the most endearing animals in...
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Bustling with a spectacular diversity of life, coral reefs are the rain forests of the oceans.
Hands-on

Create land and sea animals that "glow" in the dark!
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If you watched an American black bear lumbering through the forest, you might not notice anything unusual about how i...
Hands-on

Send a note to a friend with these watery letterheads.
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It's no fluke that Howard Rosenbaum is wild about whales -- especially the endangered right whales and humpback whales.
Hands-on

Can you make it down to the ocean floor? Along the way, discover what makes water special.
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In college, Rob DeSalle wanted to study the narwhal, an Arctic whale with an eight-foot spiral tooth.
Story

Explore this family tree of living things on Earth.
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Growing up, Joel Cracraft loved reading travel and adventure books. In high school, he became interested in ornitholo...
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Compared to other titanosaurs, Gondwanatitan was a peewee at only about 7.5 meters (25 feet) long. 
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This extinct bird weighed over 330 pounds and had heavy legs and tiny wings. 
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This "king tyrant lizard" was one of the largest carnivores that ever lived.
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Dug up in the Alxa Desert in China, this is the oldest and most complete therizinosaur ever found.
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This theropod belonged to a group called ornithomimids, also called "ostrich-mimics." 
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This is one of the oldest known dinosaurs!
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This prehistoric relative of living ducks had a long neck, tall legs, webbed feet, and a duck-like head.
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Gregor Mendel not only ate his peas, he used them to figure out how genes are passed from generation to generation. I...
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As you can tell from its body plates and tail spikes, this dinosaur is related to Stegosaurus. 
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This horned dinosaur had two long spikes on the back of its frill, the bony extension behind its skull.
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This plant-eating dinosaur was an ornithopod, as are duck-bill dinosaurs. 
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This predator has fast feet, a pair of "killing claws," and more than 60 jagged teeth!
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These creatures have lived in Earth's oceans for over 545 million years!
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With its bird-like features, this animal was mistaken for a giant bird for a while.
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Are these rare and colorful creatures flowering plants or animals?
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Long before dinosaurs, these strange roach-like creatures scurried along the ancient sea floor.
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Its brow horns and snout horn inspired this dinosaur's name, which means "three-horned face."
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This plant-eating dinosaur might have weighed as much as 225 kilograms (500 pounds)!
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Because of the diamond-shaped plates on its back, Stegosaurus was given a name that means "roof lizard." 
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As a conservation geneticist, Yael tries to help endangered species by studying their DNA.
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In the wild, ruffed lemurs live in only one place -- the eastern rain forests of Madagascar.
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The St. Vincent parrot makes its home on the tropical island of St. Vincent in the Caribbean. These parrots are cover...
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With vibrant colors and fantastic shapes, coral reefs are a breathtaking sight. These underwater structures are actua...
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Dinoflagellates are tiny, one-celled organisms that live in oceans and freshwater ponds, rivers, and streams. Some di...
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Giant puffballs aren't your typical mushrooms.
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Although the rosy periwinkle stands only one foot tall, in the world of medicine it's a giant.
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You might think that all mosquitoes are alike, but did you know that there are actually about 2,500 different kinds?...
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Think of giant kelp as the Godzilla of the seaweeds.
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About 80 million years ago, the carnivorous Velociraptor and the plant eating Protoceratops fought to the death.
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Oviraptor was a bizarre-looking, toothless dinosaur. 
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Genetics is the study of how traits are passed from one generation to another. Traits such as eye color and nose shap...
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Have you ever wondered why you look like your parents, grandparents, or siblings? It's because of your genes -- the i...
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At age 10, George Barrowclough began bird watching with his dad. He pursued his interest in birds by becoming an orni...
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An invasive species is a living thing that moves into a new region. Species often become "invasive" as a re...
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New Caledonia, a tiny island east of Australia, is the only place where an unusual bird called the kagu is found. Abo...
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This beautiful tortoise lives in the deserts of Madagascar, an island off the coast of Africa. This reptile gets its...
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To try to piece together how organisms are related, scientists use cladistics.
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The king cobra is the largest venomous snake in the world. Whether slithering on land, climbing trees, or swimming, i...
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The Komodo dragon lumbers through the forest on its thick, stocky legs. It sways its head back and forth, flicking it...
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The leatherback is the world's largest turtle. Unlike the bony exterior of other sea turtles, the exterior of the lea...
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The mountain gorilla lives high up in the forests of east central Africa.
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The gremlin-like, endangered aye-aye makes its home in the tropical forests of Madagascar, a large island off the coa...
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It only seems like the world's entire ant population attends your picnics.
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Cassava is one tough plant because it can grow in poor and unfertile soil in most tropical environments. Cassava is a...
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Most people know red and black spotted ladybird beetles as friendly insects that are fun to pick up and watch fly awa...
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If you looked at the contents of a vacuum cleaner bag with a microscope, you'd probably find millions of tiny creatur...
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A rotting log is a mighty tasty meal -- if you're a termite. Termites not only eat wood, some kinds live in it, too....
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This famous long-necked, long-tailed wonder belongs to a group called "sauropods." 
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A dinosaur book led to this paleontologist's lifelong fascination with fossils.
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In the 1920s, the first team of Museum paleontologists trekked to the Gobi Desert in Mongolia.
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Psittacosaurus is one of the oldest and most primitive ceratopians ever found!
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Museum scientists made a surprising discovery in the Gobi Desert: an egg that contained the remains of a tiny dinosau...
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This rare lizard lived in the Gobi Desert about 80 million years ago. 
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Although extinct today, this gopher-sized mammal thrived during the Mesozoic Era for about two million years.
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Saying "deoxyribonucleic acid" is a real mouthful. Luckily, you can call it DNA for short.
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Thousands of plants and animal species may be in danger of becoming extinct and disappearing forever.
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Have you ever seen pond scum -- that thick, smelly layer of slime floating on the surface of the water? That's probab...
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Based on fossils of ancient dragonflies, we know these winged insects have been soaring around for at least 300 milli...
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Not all spiders spin webs to catch their meals. When night falls in Australia, the white-tailed spider hunts its prey...
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Compared to the continent of Africa, Madagascar may seem small. But this island, the fourth largest in the world, is...