Did you know that some iguanas can make themselves smaller?
Lonesome George is the last of his kind.
These plants and animals may be on their way to extinction.
What might happen if you took animals out of their natural habitat and brought them to a new environment where they did not naturally occur?
See how this Galápagos dweller has adapted to survive.
Learn about the adaptations that allow this animal to thrive in the Galápagos.
What steps do these arctic birds take to make themselves at home?
See how all living things are related, including the single ancestor they all share.
Find out why biodiversity is so important to our planet — and what you can do to help protect it.
Discover how all the players in an ecosystem depend on each other to survive.
Join scientists investigating biodiverse places around the world.
Scientists travel around the world to learn about different animal species — from parrots to gorillas.
Will you go extinct? Print and play this board game to find out.
Today species are becoming extinct faster than ever.
Explore a world at risk and learn what you can do to help.
For better or worse, international commerce and air travel have helped the global exchange of species and the spread of disease.
Learn about an increasingly common way to manage rare or threatened species.
Observing these birds helped the scientist formulate the theory of evolution.
Learn about the archipelago Darwin visited in 1835.
Meet the largest lizards in the Americas.
Watch and learn: What characteristics does this animal possess?
A turtle is an animal in armor.
Watch and learn: This lizard's on the go!
Watch and learn: These are the smallest penguins to live in a warm habitat.
Watch and learn: Do you know what a group of sea lions is called?
Look and learn: This lizard's in the process of enjoying a cacti snack.
Look and learn: Do you know how these non-native animals wound up on the Islands?
Look and learn: These pink creatures have a unique way to filter for food.
Watch and learn: The male bird uses his large and colorful throat bag to attract a mate.
Look and learn: Where did this bird get its funny name?
Watch and learn: These birds are present on most of the Galápagos Islands.
Look and learn: Meet one of the 13 species of Finch on the Galápagos Islands.
Watch and learn: This is the biggest of the Galápagos birds with a wingspan of over seven feet.
Look and learn: These tiny birds are smaller than six inches long.
Watch and learn: Observe the brilliantly hued feet of this island bird.
Watch and learn: Take a close-up look at the only sea-going lizard.
Look and learn: This large seabird will dive into the water with its mouth open in order to catch fish.
Watch and learn: How does a mother bird feed her young?
Look and learn: How do farmers get help from a friendly beetle?
A window-box garden will help you find out which flowers attract animals.
What characterizes 25,000 species of true bugs?
What makes stinkbugs stink?
What's behind an animal's change from egg to adult?
What do crabs, lobsters, spiders, insects, centipedes, and millipedes have in common?
Each time an insect changes, it undergoes a process known as molting.
What do worms have to do with the most luxurious of fabrics?
What does it mean to warn ''don't let the bedbugs bite''?
Find out more about what it means to be an insect.
It's the only food produced by insects and consumed by humans.
What's the science behind zooming insects?
Find out what critters like maggots and praying mantises can do for you.
Watch out, European ants! A huge colony of Argentine ants is invading your turf.
Look and learn: Observe the four stages of life cycle development.
A world without insects would be a very different place.
Insects provide critical protein for people around the world.
Look and learn: All 40,000 species of true bugs share common features.
A historic South American cruise led to groundbreaking findings about the wild kingdom.
See what kids asked and what the scientist revealed.
Look and learn: Examine light from fireflies and other living things.
Look and learn: For over 100 years, scientists have been on a quest to spy a giant squid.
How do explorers reach the bottom of the sea?
Why do things float?
Several hundred thousand kinds of plants and animals live in the ocean.
Deep-sea vents create cozy homes for some of Earth's weirdest life forms.
Scientists have finally proven the existence of giant waves.
Look and learn: Until now, scientists thought the brittlestar was blind.
Each of the octopus's arms has its own complex nervous system.
Why do whales sing?
The Hawaiian bobtail squid has an organ in its belly that works like a flashlight.
Learn more about Oceans at the American Museum of Natural History.
Discover the depths of ocean life.
Check out the world's longest coral formation in Australia.
Dolphins and sea lions have been trained to clear explosives from the water.
Read about jellyfish, hydras, corals, sea wasps, and sea anemones.
These animals are members of a group of ocean invertebrates called cephalopods.
What makes a mollusk?
What does it take to be a squid?
Learn about these reptiles and their behaviors.
Look and learn: Visit the tallest of all living mammals.
Look and learn: Visit the largest land animal in the world.
Look and learn: The hippo has the largest mouth of any mammal.
What mammal has an elaborate language and highly-specialized tools?
Look and learn: A hummingbird's wings beat more than 50 times per second.
Look and learn: Swoop in on a bat catching an insect in flight.
Learn more about these fascinating creatures.
Look and learn: Swim with this aquatic mammal.
How and why do animals migrate?
How do radar and sonar really work?
Discover more about bats.
Find out about the colorful, the tiny, and the unusual.
By looking at an animal's body, what clues can we find about how an animal lives?
Learn how every kind of animal has its own way of surviving.
Find out about bats that live in a community.
What kinds of ants make up a typical colony?
Why do bats -- and other creatures -- come out at night?
How do owls on the prowl use sound, light, and silent flight to snag their prey?
How do electronic ears help hear what human ears can't?
Take a listen to the many languages of bats.
Take a closer look at the notorious blood-sucking vampire bat.
Meet an unusual mammal that lays eggs.
How do scientists collect deadly snakes?
Look and learn: Discover how snakes' bodies are highly specialized.
Find out how snakes move and escape from predators.
Look and learn: Get up close with a beetle.
Look and learn: What makes this animal group unique?
Look and learn: Uncover the truth behind frogs and toads.
Take a closer look at a couple of crocodilians.
Look and learn: How do alligators hunt?
Look and learn: What makes a bird a bird?
Investigate the inner workings of birds.
Look and learn: Meet the skinks -- one of the two largest lizard families.
Look and learn: Take a look at a boa, a non-venomous, constricting snake.
Look and learn: Catch a glimpse of this spiky squamate.
What might be the cause of a two-headed turtle?
What makes geckos one of the best climbers in the animal world?
Find out what happened when a Komodo Dragon ate a teddy bear!
Learn about one research team's race to identify more than 100 frog species.
Discover how the gecko inspired a new kind of glue.
How can we keep the leatherback turtle from becoming extinct?
Find out how to take care of baby dwarf chameleons.
Investigate how sense of smell helps Green sea turtles migrate over 1,000 miles.
What's the secret behind chameleons fast-moving tongues?
Find out how some animal toxins are leading to new painkillers.
Find out how fancy footwork helps one lizard walk on water.
Look and learn: Check out a herbivorous lizard found in rocky desert areas.
Look and learn: Take a peek at a lizard that's great at climbing.
Look and learn: See a lizard whose favorite meal is insects.
Look and learn: Observe a lizard that produces venom.
Look and learn: Check out this remarkable lizard commonly found in Australia.