The first headbutting paravian: Bird-like dinosaur likely used thick skull to win over mates

Whether it's digging up weathered bones from a paleontological site or reexamining forgotten trays in museum and university ...
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Humans have weaker ear muscles than chimps—yet some humans are still able to twitch them

Most people never think twice about their ears, until they catch a strange little twitch they can't explain. It might happen after a sudden noise or while trying to focus on a distant sound. These ...