I used to own two petsores from. I used to feed mice to redtailed catfish and Savannah monitors, crickets to scorpions and tarantulas, goldfish to lionfish and triggers, and occasionally a rabbit to a big snake.
I raised pygy possums for a little while. When you put a mouse in the cage with one, it will pin it down and gnaw though the skull of the mouse till it has eaten its brain. Then it leaves and ignores the body.
I used to feed baby mice, pink, eyelidless and helpless, to frogs.
Once, when we ran out of mice, I tried to feed a gerbil to a king snake. When the snake struck, the gerbil bit it back. It pierced though the snake's face and roof of its mouth. It would have bled to death if I hadn't taken it to the vet immediately.
So, fuck that monkey.