Which skeletal part was a key element in showing that birds are descended from dinosaurs?
Correct answer: The wishbone part of the breastbone

RushMama2112
Weren't hollow bones an indicator, too?

Player #42781779
sounds like both answers are correct.

Muntaha
Muntaha, yes💞

Muntaha
xyz, yes 👍

xyz
we know this from 'friends' #rachel

Jo
knew the answer but chose the wrong one anyway

Goblin
What!? Are you implying that evolution is for real?