Keystone species are those whose very lives create survival for other species just by being who they are in their natural environment. From the Animals' point of view, this includes humans. The questions is: what will we choose?

https://www.nrdc.org/stories/keystone-species-101

https://www.worldwildlife.org/species/elephant

https://apnews.com/article/science-montana-billings-wolves-animals-b30ea97cd47b7cbe387e114d6dbfab4a

https://www.nytimes.com/2021/10/21/science/tuskless-elephants-evolution.html

https://www.pressreader.com/usa/the-denver-post/20211121/281483574642186