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Why Fiddler Crabs Have Giant Claws

Fiddler crabs' large claws look intimidating, but is deadly combat their main purpose?

Aired 10/25/2017

NOVA

Why Fiddler Crabs Have Giant Claws

Clip: Season 44 Episode 19 | 3m 32sVideo has Closed Captions

Fiddler crabs' large claws look intimidating, but is deadly combat their main purpose?

Fiddler crabs' large claws look intimidating, but is deadly combat their main purpose?

Aired 10/25/2017

National Corporate funding for NOVA is provided by Carlisle Companies. Major funding for NOVA is provided by the NOVA Science Trust, the Corporation for Public Broadcasting, and PBS viewers.

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Darwin's Beetles Spar Off

Video has Closed Captions

Beetles make up the largest group of insects on Earth. Why do so few have massive pincers? (1m 55s)

Extreme Animal Weapons Preview

NOVA uncovers the secrets of nature’s battleground—claws, horns, fangs and all. (30s)

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National Corporate funding for NOVA is provided by Carlisle Companies. Major funding for NOVA is provided by the NOVA Science Trust, the Corporation for Public Broadcasting, and PBS viewers.

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