You have to define who "them" is. Without knowing this, the question is unanswerable.
To stop tiger extinction (of any kind) people ban hunting them, making hunting tigers or trading any thing from a tiger illegal.
we can stop cutting down animal habitats
Don't kill them.
white lions can be saved from extinction if people stop hunting them,and they need to have parks for them so they would increase
They stopped hunting pandas due to threat of extinction.
Stop ruining there hbbitat ( the rainforest) Breed more in captivity stop poachers killing them for there tusks
nothing. it's appalling!
Stop global warming Stop littering Sop polluting the water Stop the over use of fuel Stop Other animals hurting them ( UN native)
set up breeding centres like China does for pandas
Because they can't be bothered to eat. stop asking fooking stupid questions, school is for that.
the answer to the question is extinction
reduce consumption. plan to have fewer children. educate those around you about the problems with plastic,