Yep. The evidence may not be completely conclusive, but I'd bet on the side of humans (plus climate to a degree) as the primary cause of the Quaternary megafaun

Yep. The evidence may not be completely conclusive, but I'd bet on the side of humans (plus climate to a degree) as the primary cause of the Quaternary megafauna extinctions in North and South America. Buffalo, passenger pigeons, and old growth forest extents make me think us humans destroy almost everything.