Mammals vs. Dinos: First Birds

Segment from the Science Channel about birds during the time of the dinosaurs. Depicts competition and ecological relations between dinosaurs and the first birds.

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Channels: Ecology

Tags: First birds dinosaurs

Uploaded by: ( Send Message ) on 11-01-2013. Dnatube suggest users to have interest in drug testing, mesothelioma, insurance, medical lawyers.

Duration: 1m 16s

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