When I hear the word Pleistocene I think of two things:

1. The George Carlin bit where he was trying to emphasize we were still basically cave people.

2. Petrified wood. Like big tall ancient forests that towered over you, so old the wood became petrified. Almost like a standing in a marble forest of ancient trees.

I don’t know why two is associated with that word but that’s now it’s stuck in my brain.

You run fast but they don’t get tired.

Persistence hunting; you don’t have to be accurate, you just need to tire out your prey.