Flapping Their Wings

As chicks mature, they strengthen their breast muscles by flapping their wings vigorously

Wildlife

Preview thumbnail for 10 Fun Facts About Bioluminescence

10 Fun Facts About Bioluminescence (02:38)

Preview thumbnail for How Cowboys Breed Perfect Cattle

How Cowboys Breed Perfect Cattle (04:12)

Preview thumbnail for Swimming With Sharks: Juliet Eilperin

Swimming With Sharks: Juliet Eilperin (04:16)

Preview thumbnail for Manufacturing of bitumen-lined water bottles

Manufacturing of bitumen-lined water bottles (01:41)

Preview thumbnail for A sea lion propels itself through the water at Smithsonian's National Zoo

A sea lion propels itself through the water at Smithsonian's National Zoo (00:05)

Preview thumbnail for Why Young Grassland Songbirds Sleep In

Why Young Grassland Songbirds Sleep In (02:02)

Preview thumbnail for Don't Call the Blobfish Ugly

Don't Call the Blobfish Ugly (02:21)

Preview thumbnail for 7 Weirdest Bird Calls

7 Weirdest Bird Calls (02:55)

Preview thumbnail for 10 Fascinating Facts About Owls

10 Fascinating Facts About Owls (03:04)

Preview thumbnail for 10 Fun Facts About Jellyfish

10 Fun Facts About Jellyfish (02:46)

Preview thumbnail for 10 Enchanting Butterfly Facts Revealed!

10 Enchanting Butterfly Facts Revealed! (02:28)