[qam1]

That would explain why the Pliestocene extinction rate was much higher among land animals than for those that lived in the water.

Sure.. Like the aquatic American Bison that survived

Or the Land Loving Giant Beaver that went extinct

Sorry, I think what Geologist Norman Macleod said about the Dino Asteroid hypothesis

"The impact theory says in effect that a rock fell out of the sky and killed everything, except for the things that it didn't kill. I don't think that's much of an explanation."

Fits here as well

[Interesting Times]

It’s no great feat to find a couple of exceptions.

The fact remains: land animals suffered extinctions during this event at several times the rate of water animals.