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?
Problems playing video? | Closed Captioning Feedback
Problems playing video? | Closed Captioning Feedback
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.
Support provided by:
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?
Problems playing video? | Closed Captioning Feedback
How to Watch NOVA
NOVA is available to stream on pbs.org and the free PBS App, available on iPhone, Apple TV, Android TV, Android smartphones, Amazon Fire TV, Amazon Fire Tablet, Roku, Samsung Smart TV, and Vizio.
Buy Now
NOVA Labs
NOVA Labs is a free digital platform that engages teens and lifelong learners in games and interactives that foster authentic scientific exploration. Participants take part in real-world investigations by visualizing, analyzing, and playing with the same data that scientists use.Providing Support for PBS.org
Learn Moreabout PBS online sponsorship
Video has Closed Captions
Clip: S44 Ep19 | 1m 55s | Beetles make up the largest group of insects on Earth. Why do so few have massive pincers? (1m 55s)
Extreme Animal Weapons Preview
Preview: S44 Ep19 | 30s | NOVA uncovers the secrets of nature’s battleground—claws, horns, fangs and all. (30s)
Providing Support for PBS.org
Learn Moreabout PBS online sponsorship
Support for PBS provided by:
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.