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Under the Hood
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πŸ“Έ by @joe_rooyakkers4

Grey shark bitten by an even larger grey shark.

Sharks cannibalizing eachother is nothing new, sharks eat other sharks of the same species all the time.

However not all shark on shark violence can be classified as cannibalism. Sharks have been around for so long that while they may look similar, most if not all of them are genetically different species at this point in time.

There are over 450 types of sharks in the world today, and thousands of shark species have come and gone in the roughly 420 million years they have been around, but they are all believed to be distant relatives of 3 prehistoric sharks:

The cladoselache shark
The stethacanthus shark
The xenacanthus shark

Again, the sharks of today are very different from these early sharks.

For instance, a bull shark and a tiger shark are as genetically different from one another as a cat is from a squirrel. And a great white shark is as closely related to both of those species of shark the same way that a wolf is related to a moose.

The grey shark in the photo was attacked during the annual sardine run in South Africa, where the sharks and other predators corral the sardines close to the shore to have an easier time picking them off, it seems the larger grey got sardine fever and went ham on one of his buddies.

Accidental cannibalism?

Let’s go with that

#natureismetal

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