Sixgill Sharks Prey on Other Sharks in the Deep Ocean

In the abyss, even sharks are hunted by bigger sharks.

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Stomach content analyses have confirmed other elasmobranchs in sixgill diets.

Diet studies have revealed that sixgill sharks consume other shark species, positioning them as apex predators within deep-sea ecosystems. Their size and bite force allow them to dominate other large fish.

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💥 Impact (click to read)

Predation on fellow sharks reshapes deep-ocean food webs, as few species can challenge a mature sixgill. In darkness, dominance depends on bulk, stealth, and sudden force.

When a predator large enough to eat other sharks operates across extreme depths, it becomes a keystone force linking multiple trophic layers. In the deep sea, hierarchy still exists—and sixgills sit near the top.

Source

Monterey Bay Aquarium Research Institute

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