5 Comments TIL Roosters have ‘spurs’, which are very sharp claw-like growths made of bone and keratin that protrude posteriorly from their legs near their feet. by whatilearned November 28, 2021, 8:19 pm 12 Points Upvote Downvote
6 Comments TIL about the difference between antlers and horns: Antlers are a uniform single piece and are shed and regrown each year, while horns are made of two pieces, a bone core and a keratin cover, and (save for one species) don’t shed, by whatilearned July 13, 2021, 5:55 pm 12 Points Upvote Downvote
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