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Indohyus, my brother (www.youtube.com)
submitted 2 years ago by refolde@hexbear.net to c/earth@hexbear.net
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[-] Dolores@hexbear.net 2 points 2 years ago

baleen is made of keratin, its suspected to arise from the loss of teeth from a suction-feeder, then idk hairs emerging in the mouth that become filters

this post was submitted on 05 Dec 2023
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