Before I go, I wanna add a bit more provocation so people can yell at me and keep the thread going/board energy up.
I basically don't think species extinction is a big deal like everybody claims. I care quite a bit about the suffering of sentient creatures. But I don't think there's any reason to care whether some particular species is around or not, unless they're so ecologically critical that their loss causes a big domino effect. Like really, why does us not having a sabertooth tiger or woolly mammoth or dinosaur around matter at all other than the fact they're "sick"? Yeah, platypuses are pretty cool, but that's not a moral argument.
The earth has had a lot of extinction effects, and life, in all its complexity and subtlety, always bounces back. I don't see any reason to believe the current batch of biology is "sacred" in any meaningful sense, when we've had so many batches. Humans are special for obvious reasons, nothing we know of has ever been able to do what we can do. But some pretty tropical bird? Really, who gives a shit. The whole anti-extinction fetish, particularly from people who are fine locking up billions of mammals and birds in horrific Holocaust-level conditions for the meat industry, strikes me as a bad & boring take.