Thursday, 12 September 2019

What If There Were No Sharks?


What would the oceans look like if all of the sharks disappeared

Sharks are magnificent predators that represent an impressive evolutionary success story. They've swum the oceans for more than 400 million years, diversifying over time to inhabit rivers and lakes as well. About 500 known species are alive today, and there are likely even more yet to be discovered.

Sharks can be huge, like the massive whale shark (Rhincodon typus); or human-hand-size, like the pocket shark (Mollisquama parini). However, it's the great white shark (Carcharodon carcharias) that typically commands the public's imagination. These sharks have a reputation for aggressiveness toward people, shaped by decades of terrifying portrayals in movies. In fact, these fearful pop-culture portraits of great whites are so pervasive that they might lead some people to wonder if the world would be better off with no sharks at all.

But what might the oceans look like if all of the sharks disappeared? 

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