Can Etsy be trusted?

Hello, I find oddities very interesting and want to start collecting. Im a vet tech who’s around a lot of animal death so I think wet specimens & diaphonization are great ways to celebrate an animals life. That being said I’m concerned about ethics when it comes to Etsy & similar sites. I’ve found some sellers who explicitly state that all their animals are found previously passed & are not endangered species. I know you can never be 100% sure but would yall trust this? Are there any sellers you’d recommend? I’d feel terrible if I ended up supporting someone who kills (especially young) animals just to make a profit off their bodies