Can You Spot the Octopus?

Can You Spot the Octopus?

See an octopus's incredible camouflage ability in action. more

How advertisers joined the fight against germs

How advertisers joined the fight against germs

Why the dinosaurs’ extinction is an ongoing puzzle

Why the dinosaurs’ extinction is an ongoing puzzle

In the 19th century, going to the doctor could kill you

In the 19th century, going to the doctor could kill you

Why bats aren't as scary as you think

Why bats aren't as scary as you think

When cities were cesspools of disease

When cities were cesspools of disease

Asian giant hornet is no match for Japanese honeybees

Asian giant hornet is no match for Japanese honeybees

Discover how conservationists are reintroducing extinct wildlife in Iberá National Park

Discover how conservationists are reintroducing extinct wildlife in Iberá National Park

Birdwatching with FARC

Birdwatching with FARC

See how wildlife is bouncing back in this African park

See how wildlife is bouncing back in this African park

Keeping Canada clean

Keeping Canada clean

Shark tagged from submarine for first time in history

Shark tagged from submarine for first time in history

Inside the surprisingly social lives of manta rays

Inside the surprisingly social lives of manta rays

What a sea snail die-off means for Californians—and the climate

What a sea snail die-off means for Californians—and the climate

See why this colorful ‘king of birds’ is the center of conservation efforts

See why this colorful ‘king of birds’ is the center of conservation efforts

See how this school of tiny fish uses bacteria to glow in the dark

See how this school of tiny fish uses bacteria to glow in the dark

Behind the scenes: A rumor about opiates and pangolin scales is debunked

Behind the scenes: A rumor about opiates and pangolin scales is debunked

For harp seal pups, survival depends on its first ten days

For harp seal pups, survival depends on its first ten days

Watch Arctic wolf pups on first family outing, in rare footage

Watch Arctic wolf pups on first family outing, in rare footage

Polar bear cubs must grow up fast in the unpredictable Arctic

Polar bear cubs must grow up fast in the unpredictable Arctic

Behind the shot: Brutal blizzard proves to be a challenge in filming polar bears

Behind the shot: Brutal blizzard proves to be a challenge in filming polar bears

Watch: First recorded footage of a dolphin mom adopting a calf from a different species

Watch: First recorded footage of a dolphin mom adopting a calf from a different species

Bears 101

Meet the small Arctic animals that conquer their big polar world

Meet the small Arctic animals that conquer their big polar world

This sacred golden fish thrives in Bhutan

This sacred golden fish thrives in Bhutan

20-foot great white shark caught on video is one of biggest known

20-foot great white shark caught on video is one of biggest known

Male polar bears fight each other—for a surprising reason

Male polar bears fight each other—for a surprising reason

Behind the scenes: Meet a polar bear tracker

Behind the scenes: Meet a polar bear tracker

South Africa’s humpback whales make a stunning comeback

South Africa’s humpback whales make a stunning comeback

Sharks 101

How orcas hunt great whites fascinates biologists

How orcas hunt great whites fascinates biologists

Behind the shot: Camera drone captures wolf pack hunt

Behind the shot: Camera drone captures wolf pack hunt

Wolf pack and polar bear face-off in the Canadian Arctic

Wolf pack and polar bear face-off in the Canadian Arctic

Watch pigs communicate with humans in new experiment

Watch pigs communicate with humans in new experiment

He spent his career studying a frog. Then he discovered its true identity.

He spent his career studying a frog. Then he discovered its true identity.

Watch a dog respond to voiceless commands via this vibrating vest

Watch a dog respond to voiceless commands via this vibrating vest

Wild_Life Season 3: "The Big Freeze"

Wild_Life Season 3: "The Big Freeze"

Newly discovered dinosaur foot is best-preserved theropod fossil in Brazil

Newly discovered dinosaur foot is best-preserved theropod fossil in Brazil

Deserts 101

See first-ever video of giant squid in U.S. waters

See first-ever video of giant squid in U.S. waters

A brief history of Yellowstone National Park

A brief history of Yellowstone National Park

First-ever video shows wolves catching and eating fish

First-ever video shows wolves catching and eating fish

Watch the first confirmed video of what could be hippos grieving

Watch the first confirmed video of what could be hippos grieving

Scientists conduct first study on the largest known marine stingray

Scientists conduct first study on the largest known marine stingray

See how these plants eat salamanders

See how these plants eat salamanders

Invasive Species 101

Invasive Species 101

Detroit’s urban beekeepers are transforming the city’s vacant lots

Detroit’s urban beekeepers are transforming the city’s vacant lots

Watch fireflies put on a spectacular mating dance

Watch fireflies put on a spectacular mating dance

First-ever video shows chimpanzees hit tortoises to eat them

First-ever video shows chimpanzees hit tortoises to eat them

101 Video Shorts

What is a Solstice?

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101 Videos

Mars 101

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101 Videos

Moon 101

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Astronaut Cave

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Intense Auroras Fueled by Sun Storm (Silent)

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Jupiter 101

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Longest Solar Eclipse Coming

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Exoplanets 101

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101 Videos

Solar System 101

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Mars Rover's "Seven Minutes of Terror"

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Portable Scanners "Read" Brains on the Go

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NASA Probe to Explore Jupiter

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Stuck Mars Rover About to Die?

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I Didn't Know That: How Rockets Work

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How Many Moons Does Each Planet Have?

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Watch How Ordinary Objects Can Be Turned Into Robots

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