Cuttlefish Supplement 2 (VIDEO)

Duke University

Caption

Calm, resting cuttlefish were exposed to silhouettes of looming crab, fish, and shark. The animals performed a freeze response for 80 percent of the generalized fish and shark stimuli, but the non-threatening crab didn't elicit response. Cuttlefish frequently covered their siphons with their arms in response to fish and shark stimuli, but rarely in response to crabs.

Credit

Christine Bedore, Duke University

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