Hacker News Reader

We're just going to work our way down the food chain.

Already have, many people personally cull grass periodically.

We even have solar panels.

Same with deer (wolf culling)

Out of curiosity, what are/were kangaroo's predators?

https://en.wikipedia.org/wiki/Thylacine too, but probably not for adult kangaroos.

Also dingos, crocodiles, pitons and eagles.

Also australian aborigines.