Did you know? A hummingbird’s bill keeps growing—like a tiny fingernail. Little nicks from probing flowers or snapping insects can wear the tip, but fresh keratin grows in and smooths it out. Sharp beak today, sharp again tomorrow. Self-repair on a tiny tool. #EveTechTales #fblifestyle #hummingbird #hummingbirds #birdfacts #didyouknow ¿Lo sabías? El pico del colibrí sigue creciendo, como una uñita. Las puntitas se gastan o se marcan al buscar néctar o atrapar insectos, pero el pico repone querat