Dávalos and her colleagues used a wealth of paleontological and evolutionary New World bat data — including data on both living and extinct species — to build the models. Their work revealed an equilibrium of biodiversity for millions of years prior to the arrival of humans, and allowed researchers to simulate how long it would take natural forces to reinstate equilibrium sans human interference.
“Remarkably, it would take at least 8 million years to regain the species lost,” Dávalos said in a news release. “This incredibly long time required to restore diversity reveals the staggering consequences of extinctions, many caused by humans, on the long-term ecology of islands.”
Staggering consequences…. seems like humans took the wrong path from the start and instead of domination we should have nurtured.