In Sims Castaway Stories how do you get hyenas to like each other?

Unfortunately, in Sims Castaway Stories, hyenas don't have any social interactions or relationships with each other. They are wild animals that you can't befriend or interact with in any meaningful way.

The game focuses on your Sim's relationships with other Sims, animals like the monkey and the dog, and the overall environment. Hyenas are primarily there for environmental ambiance and occasional encounters that can be dangerous for your Sim.

Therefore, you cannot make hyenas like each other in the game.