What do you think about this? How did 43 monkeys get away?
It could have happened through some kind of transfer; something in an enclosure could have been insecure; it could have happened in many ways.
I know a vet who once had a whole room full of monkeys manage to get out of their enclosures.
I’ve also worked in a facility where animal rights nuts once broke in and released a room full of animals.
We know too little about this to be jumping to ‘scare’ conclusions.