So they are not lone scavengers who needed a huge territory to themselves??
These theories change too much. I thought that science was settled, darn it.
Theories are based on evidence, and more evidence is found all the time. It’s not handed down in stone.
Real science is NEVER settled. When new data conflicts with an existing theory, it’s blown out of the water and a new theory must be formulated.
It’s not “Obama said it, I believe it and that settles it.”