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[Nature is simply incredible! What’s happened on this Earth is beyond belief. Now this is what I call a SHARK!!! Jan]

Some animals have extinct relatives that used to be super-duper huge. Like the giant shark Megalodon, whose enormous jaws are shown here. This fearsome 60-foot-long (18 meters) shark lived during the Miocene and Pliocene epochs, about 23 million to 2.6 million years ago.

Wondering what other animals used to be giant? Here’s a list of 10 of them.

You can view all of them here: https://www.livescience.com/62047-photos-ancient-giant-animals.html