What does it take to put an animal on the endangered species list?

Question

What does it take to put an animal on the endangered species list?

Answer 1

All it takes is to take away their habitat or to kill too many of them.

Answer 2

"A species can be listed in two ways. The first is for the FWS (Fish & Wildlife Service) or NOAA Fisheries to take the initiative and directly list the species. The second is via individual or organizational petition which prompts FWS or NMFS ( National Marine Fisheries Service) to conduct a scientific review. "

Answer 3

we have to wait until somebody realises that the species is in danger because they have either killed them or taken thier haitat away.