How fish evolved to walk

When you think about human evolution, there's a good chance you're imagining chimpanzees exploring ancient forests or early humans daubing wooly mammoths on to cave walls. But we humans, along with bears, lizards, hummingbirds ...

Look who's talking now: The fishes

There's a whole lot of talking going on beneath the waves. A new Cornell study finds that fish are far more likely to communicate with sound than generally thought—and some fish have been doing this for at least 155 million ...

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