Why Fiddler Crabs Have Giant Claws
Clip: Season 44 Episode 19 | 3m 32s
Fiddler crabs' large claws look intimidating, but is deadly combat their main purpose?
Aired: 10/25/17
National corporate funding for NOVA is provided by Draper. Major funding for NOVA is provided by the David H. Koch Fund for Science, the Corporation for Public Broadcasting and PBS …
National corporate funding for NOVA is provided by Draper. Major funding for NOVA is provided by the David H. Koch Fund for Science, the Corporation for Public Broadcasting and PBS viewers. Additional funding is provided by the NOVA Science Trust.
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