Deep Pacific Sleeper Sharks Consume Prey Larger Than Adult Seals

This slow-moving shark swallows animals heavier than a motorcycle.

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Some Pacific sleeper shark stomachs have contained intact large prey items, suggesting powerful suction feeding.

Stomach content analyses have revealed Pacific sleeper sharks feeding on large marine mammals such as seals, animals that can weigh hundreds of kilograms and rival the shark in bulk.

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Capturing or scavenging such prey in near-total darkness requires a combination of stealth, size, and opportunism, proving that speed is not the only path to apex predation in the deep ocean.

By consuming large mammals, the shark transfers energy from upper marine food webs into abyssal ecosystems, reinforcing its role as both hunter and recycler in one of Earth’s least visible environments.

Source

Alaska Department of Fish and Game

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