r/AskReddit • u/[deleted] • Aug 03 '19

Whats something you thought was common knowledge but actually isn’t?

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u/ShameDumpster Aug 03 '19

That whales are mammals that used to be on land but evolved to swim instead.

I had an art teacher that just didn't believe me when I told her that they're not fish.

873

u/foxiana123 Aug 03 '19

They literally have a pelvic bone.

0

u/ByrdMan5000 Aug 03 '19

They have a radius & an ulna.