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The Origin of Species: Lizards in an Evolutionary Tree

18 minutes

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Working in the islands of the Caribbean, biologist Jonathan Losos has discovered the traits that enable dozens of anole species to adapt to different vertical niches in the forest. Differences in limb length, body shape, and toepad size allow different species to flourish on the ground. However, lizards living on thin branches or high in the canopy have different characteristics. These varied adaptations have played a key role in reproductive isolation and the formation of new species.

Media Details

Runtime: 18 minutes

The Origin of Species
Episode 1
31 minutes
Grade Level: 7 - 12
The Origin of Species
Episode 2
16 minutes
Grade Level: 7 - 12
The Origin of Species
Episode 3
18 minutes
Grade Level: 9 - 12