When calculated over the last five centuries, current extinction rates of birds, mammals and amphibians are faster than the ones that led to mass extinction during the “big-five” events. If this continues, planet Earth could meet the sixth mass extinction in just a few centuries. Considering that the evolution of new species happens – at the very least – in the order of hundreds of thousands of years, humanity will experience a long period of inadequate biodiversity, beyond which it might not survive