Original sentence: Others claim that it has led to many important medical breakthroughs, and that the prevention of harm to humans should be a higher priority than the cruelty imposed on monkeys.Some claim that it is cruel and produces little information of value, and there have been many protests, vandalism to testing facilities, and threats to workers
Edited sentence: Defenders of tests on monkeys claim that it has led to many important medical breakthroughs, and that the prevention of harm to humans should be a higher priority than the cruelty imposed on monkeys.Many people claim that it is cruel and produces little information of value, and there have been many protests, vandalism to testing facilities, and threats to workers