JoGayle Howardwas an American zoologist specializing in the captive breeding of endangered species such as pandas, clouded leopards and black-footed ferrets... (wikipedia)
Giant pandas are easy compared to clouded leopards.
We wanted to make sure that these moms would not kill them. So we pulled them. We found hand-rearing these cubs would help. They have been socialized to people.
That's when the killings occur, is at night.
The biggest problem we have (in zoos) everywhere is the males kill the females. What is it that makes them so weird, that makes them kill their mates?
They love to go up. Let them climb, their stress hormones go down.
It was bad for a clouded leopard to put it near something that can eat them.
The most common mistake with any carnivore, including cats, is you just throw in meat.