Sections
Video
Terrifying Mammals That May Have Greeted Early Humans in America (02:32)
The Startling Alternative Theory of How Humans Arrived in America (02:51)
This Molecule Could Explain the Origin of Life (03:28)
We're All Made of Stardust. Here's How. (03:29)
You Won't Believe the Size of Botswana's Salt Flats (02:43)
Why Deception Valley's Deadly Heat is Good for Wildlife (01:39)
One of the Most Dangerous Mountain Passes in the World (01:43)
What Created These Strange Geoglyphs in South Africa? (01:55)
The Most Beautiful View of South Africa's Tswaing Crater (02:25)
Stephen Hawking's Stark Warning for Humans to Leave Earth (03:05)
This Science Experiment Could Help Us Live on Another Planet (02:57)
How Was Red Rock Canyon Formed? (02:12)
Why Las Vegas's Landscape Is So Lush and Green (02:43)
Why Birds Flock to This South African Nature Reserve (02:25)
Inside Look at the Mars Simulation Project in Utah (02:42)
Richard Branson Speaks on Plan for Space Tourism (02:45)
Cameras Catch Adorable Glimpse of Mountain Lion Family (03:32)
This Mountain Lion Hides Her Kills in Abandoned Ranches (03:23)
Watch a Man Snatch an Angry Cobra With His Bare Hands (01:42)
Sir David Attenborough and His Crew Race to Film a Walking Shark (01:54)
A Honey Badger and Mole Snake Fight to the Death (02:10)
This Videographer Strikes Gold with a Dwarf Minke Whale (01:54)
A Honey Badger Cracks Open a Thick Ostrich Egg (01:49)
Could Lab-Bred Super Coral Save Our Reefs? (02:02)
Lioness Underestimates the Strength of an Impala (03:22)
This Crab Doesn't Take Kindly to Home Intruders (01:26)
Tiny Bioluminescent Critters (00:09)
Manta Rays Use Tiny Fish to Help Them Stay Clean (01:57)
"Dumbo" Octopod (00:24)
Turtle Hatchlings Face Death While Dashing to Ocean (01:48)
Never-Before-Seen Footage of Clownfish Hatching (02:19)
Watch This Male Mantis Shrimp Dance to Attract a Mate (01:35)