When Whales Walked: Journeys in Deep Time

Birds Are Living Dinosaurs

Clip | 4m 33s

Birds have colonized every environment on Earth, and they come in an astonishing variety of shapes, colors and sizes. There are more than 10,000 species of bird alive today, so how did they come to be everywhere and so diverse? After discovering an assortment of fossils, scientists have concluded that birds must have evolved from dinosaurs.

Aired: 06/19/19

Rating: TV-PG

Video has closed captioning.

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