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145 Results for "fish"

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Photos and details about the diversity of ray-finned fishes.

Check out these fascinating fish from Africa's lower Congo River.
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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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For centuries, orange roughy went mostly unnoticed by humans. These fish thrived in the dark, the cold, and the intense ...
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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 an ...
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In 1938, fishermen off the east coast of Africa pulled up a strange creature in their nets.

What kind of person becomes an ichthyologist, a scientist who studies fish?
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These tropical freshwater fishes come in so many colors, shapes, and sizes, it's nearly impossible to sum up the family ...
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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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Far beneath the ocean's surface is a mysterious world of cold temperatures, intense pressure, and almost total darkness....
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The striped bass has been a popular catch for fishermen for centuries. These fishes are known for their spiny fins and t...
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Most living things need oxygen to survive. Oxygen helps organisms grow, reproduce, and turn food into energy. Humans get...
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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, but ...
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Bustling with a spectacular diversity of life, coral reefs are the rain forests of the oceans.
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The hellbender is one of the largest salamanders in North America.
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Found along tropical coastlines, thick mangrove forests were once considered a nuisance, infested with mosquitoes and bl...

Discover how these deep sea creatures create their own light!
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With their white bellies and dark backs, dolphins can be found jumping above the water, swimming alongside fishing ships...
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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, this...
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In college, Rob DeSalle wanted to study the narwhal, an Arctic whale with an eight-foot spiral tooth.

Dive into the oceans with an ichthyologist.
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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 surv...
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Estuaries are places where a river meets the sea. This ever-changing ecosystem is bursting with life. Saltwater from the...
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All living organisms need energy to live. Organisms such as plants get this energy from the Sun. But animals get this en...

Solve these interactive story puzzles to find out how people and other animals live in the Arctic.
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Growing up in Argentina, Adriana Aquino loved nature, especially the ocean. As a young girl, she wondered what it would ...
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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 probab...
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Dinoflagellates are tiny, one-celled organisms that live in oceans and freshwater ponds, rivers, and streams. Some dinof...
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The frigid waters of the Arctic and the Antarctic may seem like hostile habitats. But a variety of marine life -- from a...

Kids took the OLogy Challenge and shared their work with us!

Find out how scientists are using genetics to change the food you eat.
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Like humans, animals need to communicate with each other. Through sight, touch, sound, smell, and even electrical pulses...

From Madagascar to Indonesia, travel around the world with Museum scientists.
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This large dark bird is unmistakable soaring in the air along the coast.
Find out how humans are threatening species, and what we can do to help protect them.
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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 the...
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With vibrant colors and fantastic shapes, coral reefs are a breathtaking sight. These underwater structures are actually...
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With its long, dramatic crest, the giant Pteranodon longiceps is easy to recognize.
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The most dazzling feature on many pterosaurs was a spectacular head crest. Tupuxuara leonardii had one of the most impre...
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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!
Materials list and step-by-step instructions to create a flounder fish that's hard to spot.

Find out what you can do to protect the oceans and ocean life.
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Hundreds of years ago, European sailors placed carved mermaids on the front of their ships as figureheads and told tales...

Marine ecologist Kate Holmes answers this question.
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Confuciusornis is the earliest-known toothless, beaked bird.
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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 are...
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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 this...
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The Portuguese man-of-war is actually a floating colony of individuals called polyps that are all dependent on each othe...
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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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Animals swim, walk, crawl, slither, squirm, and even fly through the air. They can catch free rides by attaching themsel...
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The oceans are filled with creatures that use poison to survive. Some use chemical defenses to deter predators. Others, ...
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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. T...

Find out what lives in a coral reef, and how they are connected.

Photos and details about the diversity of true bacteria.

Photos and details about the diversity of turtles and tortoises.

Find out what lives in the deep sea, coral reef, and continental shelf.

Can you make it down to the ocean floor? Along the way, discover what makes water special.

What is hidden within Cuba’s underground caves? Play this matching game to find out! ¡TAMBIÉN EN ESPAÑOL!

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

Join scientist George Amato on his quest to stop criminals smuggling illegal goods.
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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 th...

Photos and details about the diversity of protists.

Photos and details about the diversity of green plants.

Photos and details about the diversity of fungi.

Photos and details about the diversity of mollusks.

Photos and details about the diversity of echinoderms.

Photos and details about the diversity of amphibians.

Photos and details about the diversity of mammals.

Photos and details about the diversity of lizards and snakes.

Photos and details about the diversity of cnidarians.

Take a world-wide tour of biodiversity with three scientists.

Invent a story about an endangered species. Then draw and write about it!
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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 a ...
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Plankton are the microscopic organisms of the sea. Just as plants form the basis for the ecosystem on land, phytoplankto...
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All animals of the sea depend on plankton, the tiny organisms that drift in the ocean.
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This theropod belonged to a group called ornithomimids, also called "ostrich-mimics." 

Ichthyologist Ian Harrison answers this question.

What lives among Cuba’s coral reefs? Play this matching game to find out! ¡TAMBIÉN EN ESPAÑOL!

What’s it like being a shark? Find out how these amazing fishes reproduce, eat, and stay safe.

Why are many animal and plant species dying out forever?

Photos and details about the diversity of arthropods.

Photos and details about the diversity of crocodilians and birds.

What adaptations help these creatures survive?

Create a flounder fish that's hard to spot!

Explore this family tree of living things on Earth.
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The first vertebrates to fly took to the skies about 215 million years ago. These creatures were neither birds nor bats....
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From waves to waterfalls, water is usually on the move. And that means it has energy. When this energy is captured and t...
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If you watched an American black bear lumbering through the forest, you might not notice anything unusual about how it m...
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The American crocodile has lived on Earth for millions of years, but today their numbers are rapidly declining because t...
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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 as...
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When Paula Mikkelsen moved to Florida, she turned a fun hobby into an exciting career. She enjoyed walking along Florida...
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What do we have in common with sharks, bluebirds, lizards, and toads? We are all vertebrates, or animals with backbones....
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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 yel...
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The blue whale is the largest animal ever to have lived on Earth.
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About 100 million years ago, a flying reptile called Pterodaustro guinazui soared above the coast of what is now Argenti...
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Fossils are the key to understanding life in the past.
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Long before dinosaurs, these strange roach-like creatures scurried along the ancient sea floor.
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You can tell a hammerhead shark by its wide head with eyes on the ends.
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During the 13th and 14th centuries, a group of people called the Aztecs flourished in Mexico. They built an advanced civ...

Animals are getting hurt by plastic. Together, we can help!

From oceans to rivers, sharks, rays, and skates are everywhere. And they’re so diverse! Get to know the different kinds.

Sharks have been around for 450 million years. Find out about their unique features and way of life!
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This massive plant-eater lived about 100 million years ago. Today, a cast of this 122-foot long titanosaur welcomes visi...

Solve these story puzzles to find out more about how life in the Arctic is affected by climate change. 
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Scientists all over the world send precious cargo to Julie Feinstein: frozen samples of animal tissues.
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According to legend, the roc was a giant bird large and strong enough to carry an elephant in its claws. As incredible a...
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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 foo...
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Silk is the finest, most luxurious cloth in the world. It is soft and shimmery, yet strong and sturdy. Long ago, silk ma...
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Since he was a kid, George Amato has been wild about wildlife. Today he works for the Wildlife Conservation Society and ...
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The whooping crane is known as the tallest bird in North America. This long legged creature has been struggling to survi...
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Animals and plants are usually adapted to survive best in particular environments, known as their habitats.
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Many other animals use camouflage -- colors, textures, or patterns that help them blend in with their environment.
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Some people may call invertebrates spineless because they lack a backbone or spine! But these amazing creatures are the ...
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California sea lions are playful, intelligent, and fast—in and out of water. Their large flippers enable them to leap ou...
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Mercury is unlike any other metal. At room temperature, it is a shimmering liquid. In nature, mercury is found as a soli...
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A coral reef may look like a colorful underwater garden, but these living structures are made by thousands of tiny anima...
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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 of t...
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Think today’s great white shark is scary? Megalodon was three times as long!

Read about where Icelandic horses come from and explore their unique traits.
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Based on fossils of ancient dragonflies, we know these winged insects have been soaring around for at least 300 million ...

Take a look at the science of where it ALL begins.

In some marine environments like coral reefs, lionfish are super-villains.

Deforestation (cutting down trees) is a major problem.

Find out how Lisa’s work impacts the health of communities.
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More than four thousand islands—including one big island—make up this nation in the Caribbean Sea.

Did you know that biodiversity provides us with things that we need?
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Like many kids interested in science, Ro Kinzler thought she wanted to be a marine biologist. But later on, she realized...
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Antarctica is like no other place on Earth. The continent is covered almost entirely by a thick ice sheet. Yet there is ...
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Until 1828, pterosaur fossils had been found only in Germany. Then a new kind of pterosaur fossil was discovered in Engl...
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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 dee...

Invertebrate ecologist Sacha Spector answers this question.

Conservation biologist Felicity Arengo answers this question.

Pollution is a big problem that affects coral reefs. Learn more.

Biologist Erin Vintinner answers this question.
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Mummies are preserved remains of humans and other animals, some lasting for thousands of years.

See how many different plants and animals you can find in this virtual mangrove swamp. 

Biodiversity is the rich variety of life on Earth. But why is it important?

What does this marine biologist like most about her work? Find out!

Conservation biologist Ana Luz Porzecanski answers kids' questions.
¡TAMBIÉN EN ESPAÑOL!

Make a bracelet that matches a section of DNA code from your favorite plant or animal.

What thrives in Cuba's wetland ecosystem? Play this matching game to find out! ¡TAMBIÉN EN ESPAÑOL!

Kids took the OLogy Challenge and shared their work with us!

Our oceans are full of colorful creatures. Find out how animals use color for attraction, communication, and camouflage. 

Kids took the OLogy Challenge and shared their work with us!