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Preview thumbnail for video'The Surprising Reason Birds First Grew Feathers
The Surprising Reason Birds First Grew Feathers (2:31)
Preview thumbnail for video'ALMA Reveals Planets Born Earlier Than We Thought
ALMA Reveals Planets Born Earlier Than We Thought (2:06)
Preview thumbnail for video'Reptiles Can't Fly. But This One Glides Like a Pro
Reptiles Can't Fly. But This One Glides Like a Pro (1:43)
Preview thumbnail for video'Why Was King Tut's Tomb Prepared in Such a Rush?
Why Was King Tut's Tomb Prepared in Such a Rush? (3:31)
Preview thumbnail for video'Behold: The World's Largest Radio Telescope
Behold: The World's Largest Radio Telescope (2:43)
Preview thumbnail for video'Why Do Insects Hate the Smell of Peppermint?
Why Do Insects Hate the Smell of Peppermint? (1:30)
Preview thumbnail for video'The Expensive Material Behind the Huayra's Incredible Speed
The Expensive Material Behind the Huayra's Incredible Speed (1:47)
Preview thumbnail for video'Mesmerizing: Pufferfish Twirling in Bubble Lassos
Mesmerizing: Pufferfish Twirling in Bubble Lassos (1:41)
Preview thumbnail for video'Were the Women of Petra More Important Than Men?
Were the Women of Petra More Important Than Men? (3:34)
Preview thumbnail for video'Wu Zetian's Bold Move at the Spectacular Longmen Grottoes
Wu Zetian's Bold Move at the Spectacular Longmen Grottoes (2:48)
Preview thumbnail for video'Timelapse Footage of a Giant Caterpillar Weaving Its Cocoon
Timelapse Footage of a Giant Caterpillar Weaving Its Cocoon (2:34)
Preview thumbnail for video'Why Dead Rulers of the Han Dynasty Were Plugged With Jade
Why Dead Rulers of the Han Dynasty Were Plugged With Jade (3:33)
Preview thumbnail for video'Why Do Giraffes Have Patches?
Why Do Giraffes Have Patches? (1:55)
Preview thumbnail for video'Brazil's Most Dangerous Landing Strip
Brazil's Most Dangerous Landing Strip (2:32)
Preview thumbnail for video'How a Deep-Sea Offshore Drilling Rig Works
How a Deep-Sea Offshore Drilling Rig Works (3:04)
Preview thumbnail for video'Could Star Trek's Invisibility Cloak Become a Reality?
Could Star Trek's Invisibility Cloak Become a Reality? (3:56)
Preview thumbnail for video'Crazy Vintage Footage of Park Visitors Feeding Bears
Crazy Vintage Footage of Park Visitors Feeding Bears (1:08)
Preview thumbnail for video'Laser Scientists Are Developing Star Trek's Phaser
Laser Scientists Are Developing Star Trek's Phaser (3:19)
Preview thumbnail for video'How Yosemite Became the Setting of a Chaotic 1970 Riot
How Yosemite Became the Setting of a Chaotic 1970 Riot (1:41)
Preview thumbnail for video'What Gladiator School Was Like
What Gladiator School Was Like (2:31)