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These are the 20 weirdest sea creatures in our oceans (and you've probably never heard of any of them!)

Wondering about the world's weirdest sea creatures? We've compiled this list of the 20 weirdest animals in the ocean to show ...
MIT Technology Review

Sponges may have been the first animals

After studying rocks more than 541 million years old, MIT scientists have found new evidence that some of Earth’s first ...