You really must give up seafood from the ocean. Or at least, there is an argument that says this, and you can read it here.
Wolverines. I once saw a wolverine in a state that was known to not have wolverines anymore. That was a long time ago and I think they are recognized as having returned to those forests. Now, we have wolverines in Colorado for the first time since 1919. I am shocked and amazed that wolverines had been extirpated from Colorado.
All ivory is bad. Antique, modern, you name it. If you buy ivory, you are poaching an African Elephant. I assume you knew this already, but here is a recent story on a related issue.