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100 Results for "biology"

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Test your knowledge about our watery world with this quiz.
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When Martha Hurley first took science as a kid, she thought it was boring. She'd rather be outside exploring nature. The...

See how good you're at recognizing emotions.
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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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Throughout the world's oceans, tiny particles swirl, drift, and fall like snowflakes from the ocean's upper levels.

What you see and what you think you see are different things. Find out what your brain doing behind-the-scenes!

Play this game to find out more about the microbes that help and hurt us.
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Have you ever wondered what our muscles, blood, bones, and bodies are made of? They are made of cells! Cells are the bui...

How fast can you catch a falling ruler? Measure your reaction time.

Try this trippy experiment to fool your brain!
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Chromosomes are tiny, spaghetti-like packages of information. Every cell of your body contains 23 pairs of them -- that'...
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DNA is shaped like a long twisted ladder, and pairs of bases form the ladder's steps. Bases are known by the letters A, ...
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The nucleus is like the remote control center of the cell. It acts as the cell's brain by telling it what to do, how to ...
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Thousands of traits make you who you are. Some traits, such as eye color, are determined mostly, or entirely, by genes. ...
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Clones are plants and animals that have more than just their looks in common; they also have the exact same DNA sequence...
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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 probably ...
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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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Giant puffballs aren't your typical mushrooms.
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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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Animals swim, walk, crawl, slither, squirm, and even fly through the air. They can catch free rides by attaching themsel...
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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...
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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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Your body is more than just you - it is an ecosystem for trillions of tiny microbes. These bacteria, viruses, and other ...
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To try to piece together how organisms are related, scientists use cladistics.
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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 shape a...
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Have you ever wondered why you look like your parents, grandparents, or siblings? It's because of your genes -- the inst...

How is the ocean like a layer cake? What creatures live there? And how important is the ocean? Take a dive and find out!

Zoom inside your cells for a fascinating look at chromosomes, DNA, genes, and more!

Take the jellybean test to see how your sense of smell enhances taste.

Use Braille to create a message for a friend.

Explore your nerves by creating a life-sized drawing.
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For thousands of years, people have kept animals for many different reasons. They have kept sheep for wool, cows for mil...
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Your brain is made up of cells. Specialized cells called neurons allow you to think, feel, and move. Neurons aren't only...
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You hear a buzz, and swat at a mosquito.
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When you wake up in the morning, you might see sunlight through your window, hear birds chirping, or smell breakfast.
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Happy. Angry. Sad. Emotions, or feelings, tell you if something is important to you. They also tell you what your body n...
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You could travel the globe, but there's only one place you'd find a ruffed lemur: Madagascar. It is an endemic species. ...
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Many scientists have joined forces on the Human Genome Project. Their goal is to figure out the order of all "DNA letter...
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All the DNA in a cell is called a genome. Your body contains trillions of copies of the human genome -- one in each of y...
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Scientists figured out a way to take genes from one species and stick them inside the DNA of another species. When a pla...
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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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Scientists have identified over 1.75 million species on Earth -- over one million of them are insects and spiders.
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Think of giant kelp as the Godzilla of the seaweeds.
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Just a century ago, many people died from minor bacterial infections and diseases. A simple cut or strep throat could be...
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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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Like humans, animals need to communicate with each other. Through sight, touch, sound, smell, and even electrical pulses...
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It started with a cough and stuffy nose. But now you're achy, feverish, and exhausted. You just might have influenza, or...
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An animal or plant becomes extinct when the last of its kind dies. 
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The National Aeronautics and Space Administration (NASA) runs the space program, but that's just part of what they do.
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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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In college, Rob DeSalle wanted to study the narwhal, an Arctic whale with an eight-foot spiral tooth.
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The name Jurassic conjures images of tremendous dinosaurs roaming the Earth.

What does it mean to be human?
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When she was a kid, Ana explored the landscapes of rural Uruguay and Brazil and the many plants and animals that live th...
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At this moment, your brain is very busy. It's taking in a jumble of sights and sounds, but focusing on just a few.
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Did you know your brain changes every day? The brain's ability to change is called plasticity. Every time you learn and ...
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If there's one thing that makes humans different from other animals, it's the way we think.
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An invasive species is a living thing that moves into a new region. Species often become "invasive" as a result of human...
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All dogs, from the giant Great Dane to the tiny Chihuahua, belong to the same species: Canis familiaris. Within that sin...
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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...

See if you can find the hidden microbes on each coloring page!

Test your knowledge about the bacteria and other microbes that live on and in us.

Defend against bad microbes while protecting the good ones in this Minecraft map of the human body. 
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Your senses send signals to your brain, and it is up to your brain to reconstruct the events that triggered the signals....

Can poisons be used for good? Yes, and Robert will tell you why.

Molecular biologist Rob DeSalle answers this question.

Who will be the first to diversify their gut microbiome and win? 

Can you solve these three poison mysteries?
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Earth was a very different place at the beginning of the Triassic. All of Earth's continents were combined into one supe...
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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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The deep sea is not an easy place to explore. To observe the ocean below 2,000 meters (or 6,562 feet), scientists must t...
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Before archaeologists can begin digging, they have to do a survey. Surveys help them find where people lived in the past...
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The Viking mission was the first to explore Mars' surface. Two spacecraft, Viking 1 and 2, each with an orbiter and a la...

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

Find out where Rob has followed his born curiosity.

Find out how paleontologist John Flynn answered kids' questions.
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Scientists all over the world send precious cargo to Julie Feinstein: frozen samples of animal tissues.
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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!

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

Tracking a gorilla can get hairy. Literally. Just ask George Amato.

We see with our eyes, but our brains do most of the work. Watch what happens when light bounces off an object and enters your eye. 

Find out how Lisa’s work impacts the health of communities.

How can the influenza virus travel around the world? Find out in this quizzy story!
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Sterling was always fascinated by nature, ancient history, and archaeology. Since he was 15 years old, he has spent ever...
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For Steve Quinn, art and science have always gone hand-in-hand. As a kid, he liked to draw and make clay models of dinos...
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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 ...

Medical doctor Lisa Cooper and epidemiologist Jennifer Nuzzo answers kids’ questions.

Microbiologist Susan Perkins answers kids’ questions about microbes.

Ross MacPhee has always loved dirt. To him it means the opportunity to find lost things — from bones and teeth to pirate treasure.

Tigers are being killed, and their homes are being destroyed.

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

What does Chris like most about studying reptiles and amphibians? Find out!

Scientist Rob DeSalle answers kids' questions about the brain!

Be the first scientist to grow three new kinds of cells in your lab to win!

Dive into the oceans with an ichthyologist.

Conservation biologist Ana Luz Porzecanski answers kids' questions.
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What kind of person becomes an ichthyologist, a scientist who studies fish?

Meet a scientist who studies Korean culture.