I know you care deeply about the monkeys -- which is why I am writing to you today.
When monkeys who were in research are put back into a lab cage, you can see the look of despair on their faces, resignation -- this is called
"learned helplessness". When monkeys who were not in experiments are put into lab cages, they are angry, bashing toys against the cage -- demanding release.
After witnessing these two behaviors, I prefer to see the anger and determination to figure a way out, rather than despair and helplessness.