Join Steve Backshall in uncharted territory to uncover the world’s last unknown places.
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NOVAExtreme Animal Weapons
Darwin's Beetles Spar Off
Beetles make up the largest group of insects on Earth. Why do so few have massive pincers?
Clip: S44 Ep19 | 1m 55s
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Why Fiddler Crabs Have Giant Claws
Fiddler crabs' large claws look intimidating, but is deadly combat their main purpose?
Clip: S44 Ep19 | 3m 32s
Extreme Animal Weapons Preview
NOVA uncovers the secrets of nature’s battleground—claws, horns, fangs and all.
Preview: S44 Ep19 | 30s
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