I am reminded of a lecture on rainforests were the lecturer pointed out that these systems are way old (equator - no iceages) and actually creates part of their climate. The rainforests causes rain, not the other way around. And there is so many niches where species has found a resonably stable existence. It can contain so much life because the system is so complex and rich.

But then modern industrialised humans come along and chop it down to have acres for beef-cows or sugar to drives cars on. Next time the rainforest has to be more hostile to humans...

Sweden's finest (and perhaps only) collaborative, leftist e-newspaper Synapze.se