Did they determine this by comparing what DNA fragments they’ve managed to recover, or by physical skeletal structure similarities, or what?
I’m no expert in the field, but I just don’t see it.
Did they determine this by comparing what DNA fragments they’ve managed to recover, or by physical skeletal structure similarities, or what?
I’m no expert in the field, but I just don’t see it.
i think a better way to look at it is; the chicken and the t-rex share a common ancestor
an animal existed that branched into 2 different paths, one towards birds and the other big ol lizard things (conjecture, am stupid)
This is exactly right. T-Rex is a Therapod. Another line of Therapods turned into birds. That line of Therapods is called Dromeasaurs.
https://en.m.wikipedia.org/wiki/Dromaeosauridae
Also (maybe more accurately) https://en.m.wikipedia.org/wiki/Paraves