Tried to tell my kids shark skeletons are entirely cartilage. "What about their teeth?" says one. "How do they make blood cells?" the other.
-
-
(Also TIL about https://en.wikipedia.org/wiki/Leydig%27s_organ …)
Show this threadThanks. Twitter will use this to make your timeline better. UndoUndo
-
-
-
This is my skill that I most annoyed my mom with as a kid, I think.
-
well, it’s an opportunity to teach the equally important skill of knowing when to shut up and not be an obnoxious pedant.
-
I think I *mostly* learned that? But only by constantly pushing the boundaries as a kid.
End of conversation
New conversation -
Loading seems to be taking a while.
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.