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Ancient shark used its teeth like the blade of a power saw


Scientist

Ancient shark used its teeth like the blade of a power saw

Life 16 January 2020 By Colin Barras Edestus grew to the size of a modern great white sharkJesse PruittAbout 310 million years ago some sharks had saws for jaws – and now we know how one of those sharks, called Edestus, fed. The “saw blade” in its lower jaw glided backwards and forwards like the…

Ancient shark used its teeth like the blade of a power saw


Life



16 January 2020

By Colin Barras

Reconstruction of edestus

Edestus grew to the size of a modern great white shark

Jesse Pruitt

About 310 million years ago some sharks had saws for jaws – and now we know how one of those sharks, called Edestus, fed. The “saw blade” in its lower jaw glided backwards and forwards like the blade on some modern power tools, allowing the shark to cut through soft prey like fish.

We know that Edestus was a very odd shark that grew to the size of a modern great white. It had what look a lot like two saw blades in its mouth – one …

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