The zoologists running zoological gardens are using the best science available to make extremely difficult life-or-death decisions every day. A bunch of people hear about one of the decisions and think they know better about how the decision should be made, because of course facts are determined by the majority, right? I am called a troll because I point out that a certain person posted more about one Danish giraffe than about Shirley Temple Black and Sid Cesar combined, and that person immediately blocked me from replying, so I am not given opportunity to redeem my supposed troll status. IMHO, such behavior is a childish method of attempting to seize some imagined power over the discourse. Because of course facts are determined by whoever shouts loudest, right?