Giant Sperm Whales Are the Primary Natural Predator of Colossal Squid

The only animal known to regularly battle colossal squid in the deep is the sperm whale.

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Sperm whales can dive for over an hour, reaching depths where colossal squid are believed to dwell.

Evidence from scars found on sperm whales and squid remains discovered in whale stomach contents confirms that Physeter macrocephalus preys on Mesonychoteuthis hamiltoni in Antarctic waters.

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Circular scars on whale skin match the size and spacing of colossal squid hooks, suggesting intense underwater struggles at depths exceeding 1,000 meters. These encounters represent some of the most dramatic predator-prey interactions in the ocean.

The rivalry highlights how even apex predators face formidable opponents in the deep sea, reinforcing the colossal squid's status as one of the ocean's most powerful invertebrates.

Source

Smithsonian Ocean Portal

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