"In 1800, every human on the planet had a corresponding 80 kg of mammal mass in the wild." "Today, each human on the planet can only point to 2.5 kg of wild ma

"In 1800, every human on the planet had a corresponding 80 kg of mammal mass in the wild." "Today, each human on the planet can only point to 2.5 kg of wild mammal mass as their 'own.'" And animal agriculture is to blame.