Livestock make up 62% of the world’s mammal biomass; humans account for 34%; and wild mammals are just 4%.
A diverse range of mammals once roamed the planet. This changed quickly and dramatically with the arrival of humans. Since then, wild land mammal biomass has declined by an estimated 85%.
Humans are now the dominant species.
We see this when we look at the distribution of mammals across the world today.
Wild mammals make up only a few percent of the world’s mammals - Our World in Data