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Eons: Why Do Things Keep Evolving Into Crabs?

6 minutes 46 seconds

Now Playing As: Captioned (English) (change)

For some reason, animals keep evolving into things that look like crabs. What is it about the crab’s form that makes it so evolutionarily successful that non-crabs are apparently jealous of it? Part of the "Eons" series.

Media Details

Runtime: 6 minutes 46 seconds

Topic: Science
Subtopic: Biology, Evolution, Marine Life
Grade/Interest Level: 10 - 12
Standards:

Release Year: 2020
Producer/Distributor: PBS Digital Studios
Series: Eons
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An illustration depicts the dinosaur, Coelophysis, with new born Coelophysis in between its beak.

A painting depicts scientists comparing Piltdown Man's remains to other species. Charles Dawson and Sir Arthur Smith Woodward are seen standing together.

An illustration depicts a pair of dinosaurs fighting each other.

An illustration depicts a bat flying in sky.

An illustration depicts a pair of reptile like dinosaurs running in a desert. Image credit: Ceri Thomas.

An illustration depicts an extinct animal, the Giant Lemur.

An illustration depicts the earth of 50 million years ago, with a supercontinent Laurasia. Caption, Paleographic animation by C R Scotese.

An illustration depicts a theropod dinosaur, looking into a nest with eggs and newborn dinosaurs.

A skull from the fossils of Homo floresiensis, and a rough sketch of the limbs of the fossil remains are presented.

The sculpture, of a dragon sprawled, at the steps of Kinh Thien palace. Caption: Remains of Kinh Thien Palace.