To approach a question 400 million years in the making, researchers turned to mudskippers, blinking fish that live partially out of water. A magnified view of the human eye shows the pupil, the ...

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A living fossil fish just proved we've misunderstood a major chapter in the story of evolution. For decades, the coelacanth — an ancient fish species that first appeared 400 million years ago — was ...

Chris Organ does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond their ...