This is due  to habitat loss and hunting for food.  This report from back in October is reinforced by the new reports that over 1 million species are at risk.  Our ability to eat and survive is threatened. 

https:///www.ecowatch.com/earths-wildlife-wiped-out-since-1970-2616534688.html?fbclid=IwAR0N5EiSd0bRAXOkUb9a5LaeU95EZ-L7rKDD1Z3wk-b35GVshooRtHxM4vw