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Science

Preview thumbnail for video'Polar Bear Mom Protects Her Cubs From a Hungry Male
Polar Bear Mom Protects Her Cubs From a Hungry Male (2:21)
Preview thumbnail for video'Hippo Climbs Down a Steep Cliff...With Difficulty
Hippo Climbs Down a Steep Cliff...With Difficulty (2:13)
Preview thumbnail for video'This Devoted Mother Is Also a Cockroach
This Devoted Mother Is Also a Cockroach (2:29)
Preview thumbnail for video'How a Ship's Crew Eats in the Middle of Combat
How a Ship's Crew Eats in the Middle of Combat (2:00)
Preview thumbnail for video'NASA's Unusual Giant Air Cargo Transport Plane
NASA's Unusual Giant Air Cargo Transport Plane (3:28)
Preview thumbnail for video'What Really Killed Off the Woolly Mammoth?
What Really Killed Off the Woolly Mammoth? (3:29)
Preview thumbnail for video'Spectacular Footage of a Butterfly Leaving Its Cocoon
Spectacular Footage of a Butterfly Leaving Its Cocoon (4:41)
Preview thumbnail for video'Watch This Mother Tick Lay 1,500 Eggs
Watch This Mother Tick Lay 1,500 Eggs (1:32)
Preview thumbnail for video'The $10 Million Race to Invent Star Trek's Tricorder
The $10 Million Race to Invent Star Trek's Tricorder (4:15)
Preview thumbnail for video'Griffon Vultures Depend on the Sun to Fly. Why?
Griffon Vultures Depend on the Sun to Fly. Why? (1:41)
Preview thumbnail for video'This Puerto Rican Telescope Was Built in a Massive Sinkhole
This Puerto Rican Telescope Was Built in a Massive Sinkhole (1:55)
Preview thumbnail for video'Ask Smithsonian: How Long Can a Person Hold Their Breath?
Ask Smithsonian: How Long Can a Person Hold Their Breath? (1:31)
Preview thumbnail for video'Ask Smithsonian: Can Animals Predict Earthquakes and Other Natural Disasters?
Ask Smithsonian: Can Animals Predict Earthquakes and Other Natural Disasters? (1:27)
Preview thumbnail for video'Yes, Spiders Eat Spiders
Yes, Spiders Eat Spiders (4:41)
Preview thumbnail for video'Wild Inside the National Zoo: The Future of Maned Wolves
Wild Inside the National Zoo: The Future of Maned Wolves (5:50)
Preview thumbnail for video'The Pagani Huayra Is Faster Than a Jumbo Jet at Takeoff
The Pagani Huayra Is Faster Than a Jumbo Jet at Takeoff (2:00)
Preview thumbnail for video'Puerto Rico's #1 Crop Isn't Sugar, But It's Still Sweet
Puerto Rico's #1 Crop Isn't Sugar, But It's Still Sweet (1:25)
Preview thumbnail for video'The Incredible Reptiles That Flew 200 Million Years Ago
The Incredible Reptiles That Flew 200 Million Years Ago (2:41)
Preview thumbnail for video'Watch a Bombardier Beetle Mace a Praying Mantis
Watch a Bombardier Beetle Mace a Praying Mantis (1:09)
Preview thumbnail for video'The Surprising Reason Birds First Grew Feathers
The Surprising Reason Birds First Grew Feathers (2:31)