Divers Search for Tiny Animals in Iceland’s Fissures

Expedition Raw

Divers Search for Tiny Animals in Iceland’s Fissures

Freshwater biologist and cave diver Jónína Ólafsdóttir explores Iceland's frigid fissures in search of endangered micro-life.

more

Robot vs. Volcano: “Sometimes It’s Just Fun to Blow Stuff Up” (Exclusive)

Robot vs. Volcano: “Sometimes It’s Just Fun to Blow Stuff Up” (Exclusive)

Explorers See Greenland's Glaciers Like Never Before

Explorers See Greenland's Glaciers Like Never Before

Great White Shark Photo Shoot: Don't Try This at Home

Great White Shark Photo Shoot: Don't Try This at Home

Meet Warriors on a Mission to Help Lions and Humans Coexist

Meet Warriors on a Mission to Help Lions and Humans Coexist

Cheetah Matchmaking: Helping Big Cats Find A Mate

Cheetah Matchmaking: Helping Big Cats Find A Mate

Ride Along With a Team of Lion Protectors

Ride Along With a Team of Lion Protectors

Rescuing a Fierce Leopard: See What It Takes

Rescuing a Fierce Leopard: See What It Takes

A Real-Life Bone Collector: Recovering an Extinct Human Ancestor

A Real-Life Bone Collector: Recovering an Extinct Human Ancestor

Giant Underwater Cave Was Hiding Oldest Human Skeleton in the Americas

Giant Underwater Cave Was Hiding Oldest Human Skeleton in the Americas

Close Call: Flipping Iceberg Nearly Crushes Explorers

Close Call: Flipping Iceberg Nearly Crushes Explorers

Watch a Hungry Bear Catch Salmon

Watch a Hungry Bear Catch Salmon

Adorable Bear Cubs Crash Campsite

Adorable Bear Cubs Crash Campsite

How a Tiny Dog Saved a National Geographic Expedition

How a Tiny Dog Saved a National Geographic Expedition

These Giant Manta Rays Just Want to Hang Out

These Giant Manta Rays Just Want to Hang Out

Would You Bite Into a Raw Bison Liver?

Would You Bite Into a Raw Bison Liver?

Puppies and Scientists Team Up Against Zika and Other Diseases

Puppies and Scientists Team Up Against Zika and Other Diseases

Leopard Seal vs. Leopard Seal—Underwater Food Fight

Leopard Seal vs. Leopard Seal—Underwater Food Fight

Watch: Decomposing Dolphin Brings New Life to Seafloor

Watch: Decomposing Dolphin Brings New Life to Seafloor

Journey Through the Largest Cave in the World

Journey Through the Largest Cave in the World

Close Call: When a Hippo Flips Your Boat

Close Call: When a Hippo Flips Your Boat

Would You Walk Into a Room With Millions of Bees?

Would You Walk Into a Room With Millions of Bees?

Climbers Try Biking, Wipeout Ensues

Climbers Try Biking, Wipeout Ensues

Watch: Inside the World's Longest Sea Caves

Watch: Inside the World's Longest Sea Caves

Tracking Tigers Is Just As Dangerous As It Sounds

Tracking Tigers Is Just As Dangerous As It Sounds

Watch: Shipwreck Hunter Discovers 500-Year-Old Treasures

Watch: Shipwreck Hunter Discovers 500-Year-Old Treasures

Watch: Monarch Butterflies Get Tiny Radio Trackers

Watch: Monarch Butterflies Get Tiny Radio Trackers

Watch: Polar Bear Charges Nat Geo Photographers

Watch: Polar Bear Charges Nat Geo Photographers

Caught in a Bat Tornado

Caught in a Bat Tornado

Exploring Toxic Ice Caves Inside an Active Volcano

Exploring Toxic Ice Caves Inside an Active Volcano

Watch: Putting a Camera on a Whale Shark

Watch: Putting a Camera on a Whale Shark

Tense Standoff With a Male Elephant in Mating Mode

Tense Standoff With a Male Elephant in Mating Mode

Engineer Builds Drone From Scratch, Destroys It on First Day

Engineer Builds Drone From Scratch, Destroys It on First Day

Climbers Get Blasted by Sandstorm 1,000 Feet Up

Climbers Get Blasted by Sandstorm 1,000 Feet Up

Collecting Poop to Save a National Park

Collecting Poop to Save a National Park

How To Celebrate Christmas on a Volcano

How To Celebrate Christmas on a Volcano

Seal Pups: Ferociously Cute and Worth Protecting

Seal Pups: Ferociously Cute and Worth Protecting

WATCH: Billions of Bugs Feast on Flesh and Dung in Borneo

WATCH: Billions of Bugs Feast on Flesh and Dung in Borneo

This Deadly-Looking Leopard Is Actually Fun to Photograph

This Deadly-Looking Leopard Is Actually Fun to Photograph

Unsurprisingly, American Explorer Terrible at Milking Cows

Unsurprisingly, American Explorer Terrible at Milking Cows

Caught in an Underwater Avalanche

Caught in an Underwater Avalanche

Huge Whip Spiders Wear Nail Polish for Science

Huge Whip Spiders Wear Nail Polish for Science

Coyote Chomps on Sleeping Bag … With Explorer Still Inside

Coyote Chomps on Sleeping Bag … With Explorer Still Inside

How Not to Get Eaten by a Polar Bear

How Not to Get Eaten by a Polar Bear

Explorers Save Abandoned Puppy

Explorers Save Abandoned Puppy

Video From Inside a Crocodile’s Mouth (Exclusive)

Video From Inside a Crocodile’s Mouth (Exclusive)

Sharks Discovered Inside Underwater Volcano (EXCLUSIVE VIDEO)

Sharks Discovered Inside Underwater Volcano (EXCLUSIVE VIDEO)

Capuchin Monkey Soap Opera in Costa Rica

Capuchin Monkey Soap Opera in Costa Rica

Tagging a Fish With a Sword for a Face

Tagging a Fish With a Sword for a Face

101 Videos

Lithium 101

03:29
World's Weirdest: Larva Removed From a Girl's Scalp

02:52
Animals

Watch an endangered Philippine eagle chick grow up in rare video

04:04
Cobra vs. Mongoose

01:55
101 Videos

Volcanoes 101

02:28
Animals

See a meat-eating hare caught in the act

01:19
World's Deadliest

World's Deadliest: Shrimp Packs a Punch

01:38
101 Videos

Earthquakes 101

02:56
Movies

From Sudan to the United States

04:56
101 Videos

Internet 101

03:44
Science of Stress

03:19
101 Videos

Tsunamis 101

02:42
Centipede vs. Snake

01:53
101 Videos

Hurricanes 101

02:57
101 Videos

Tornadoes 101

03:00
News

Endangered Horse Birth Breakthrough

03:00

Show More Videos