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Why do dogs, bears, raccoons, and even walruses have a baculum—but humans don’t? 🦴In this video, we’re diving into the fascinating evolution of the baculum, why so many mammals have one, and the leading theories for why humans lost ours. Evolution has some pretty strange stories… and this is definitely one of them.#LearnOnTikTok #EduTok #learnontiktokcontest