- the effective population size of the passenger pidgeon was supposedly smaller than a million individuals. The billion animal events where likely exceptions and outside of the norm, possibly due to some form of human intervention.
- The huge bison herds were likely artifical, due to missing predators and almost all other large herbivors that are by coincidence missing since the first native american arrived.
- Same about the australian abriginees: > 'who thrived as guardians of their world for over 55,000 years. In all that time, the desire to improve upon the natural world, to tame the rhythm of the wild, never touched them. Indigenous people accepted life as it was, a cosmological whole, the unchanging creation of the first dawn, when the primordial ancestors sang the world into existence.' which totally disregards that the entire land based australian megafauna exept emu, red kangaroo and wombat was long extinct when europeans arrived.
A world without humans would not look like it did in the 1500s.