How can we prevent wildlife species' from becoming extinct... and eventually humans?

That would require the world growing a conscience and people being made aware of the destructive things their daily life adds to and simple ways that could change it all, but people don't care and aren't willing. Good luck.How can we prevent wildlife species' from becoming extinct... and eventually humans?
Hello. Simple. Stop killing for fun and profit.How can we prevent wildlife species' from becoming extinct... and eventually humans?
Stop killing animals and people. Create programs to preserve wild life, etc I'm more worried about people killling animals, but if they want to kill each other, be my guest. One less violent person on Earth.