Howdy researchers & info-hunters: what's the strangest fact you've come across recently in your research?

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@rusty There are some species of songbird that have "critical periods" for learning songs, and they learn those songs from other members of their species. this means that they develop dialects! also, if you keep them in isolation during the critical period (a few months after hatching), they'll develop abnormal songs (which will then become regularized by future generations!)

youtube.com/watch?v=r5_ZSnFDPR

@nimirea Woah! Birds have dialects?!! That's amazing...

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