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Dunkleosteus

Dunkleosteus

Dunkleosteus was an apex predator in the oceans of the Devonian period, about 400 million years ago. It could open its mouth in one-fiftieth of a second, creating a vacuum that sucked in its prey. It ate almost everything it encountered, including sharks, other members of its own species, and sea creatures with hard shells, which it regurgitated.

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