Tentacle Clubs of Colossal Squid Are Reinforced for High-Impact Gripping

The tips of the colossal squid's feeding tentacles function like reinforced capture tools.

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Hook rotation increases the likelihood that prey cannot easily twist free once captured.

The terminal clubs of Mesonychoteuthis hamiltoni are equipped with large swiveling hooks and muscular bases, enabling powerful, targeted strikes against sizable prey.

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When extended rapidly, these tentacles can latch onto prey before retracting toward the beak. The reinforcement of the clubs minimizes structural damage during violent underwater encounters.

This structural specialization differentiates colossal squid from many other cephalopods whose tentacles rely primarily on suction rather than piercing hooks.

Source

Journal of Morphology

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