Quote:
Originally Posted by PraedSt
Grant Hutchinson, you seem to be an expert
|
Not me. I just like to present a well-documented argument.
Quote:
Originally Posted by PraedSt
Why was everything so much larger back then?
|
Well, everything wasn't. We just hear about the big stuff because it's exciting. But almost all life, always, has been considerably smaller than a human.
The big arthropods seem to correlate with high oxygen, and disappeared when oxygen levels fell. IIRC, we've got the biggest marine life ever living on Earth at the moment. As to why the dinosaurs produced particularly big land animals, I haven't a clue.
Grant Hutchison