The shark's girlfriend is a mermaid, and he's not at all happy about the thought of her ending up in the hyena's stomach. But if it's just some human in a mermaid outfit, as far as the shark is concerned the human can find their own way out of the situation they're in.

Another image inspired by Zig and Sharko, but drawn in my style since the cartoon is very stylized and I don't think I could do it justice. The cartoon gives us this interesting dynamic: Zig and Sharko are best friends, but Zig the brown hyena is constantly trying to eat Sharko's mermaid girlfriend. This leads Sharko to often have to beat him up, but that doesn't change the fact that they are friends. A compromise like the one here - the hyena eating a human in a mermaid suit instead - would probably make both of them happy.