Why don't all mammal babies have egg teeth? All of them come from eggs.
1mon 8d ago by sh.itjust.works/u/actionjbone in shittyaskscience@lemmy.zip
Mammal noses were once 'egg teeth', but for some reason mammal eggs lost their hard shells, and the noses (scientific name: 'schnozzolae') were re-purposed for the olfactory sense.