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.

  • over_clox@lemmy.worldOP
    1·
    6 months ago

    Okay, gotcha.

    Still, maybe I’m a dumdum, but aren’t alligators and crocodiles and similar species mighty close to the ancient dinosaurs?

    Edit: Are those closer or further away from dinosaur relatives than birds? Either way, what makes one group of creatures closer to dinosaurs than the other?