NOVA

Mammal Fossils Fill in Missing Piece of the Timeline of Life

Clip: Season 46 Episode 17 | 3m 35s Video has closed captioning.

Paleontologists analyze concretions—hard orbs of minerals that can collect around material like bone—and discover fossils of mammals that lived on Earth just after an asteroid killed the dinosaurs.

Aired: 10/30/19

Rating: NR

Problems Playing Video? | Closed Captioning

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