Why would anyone be opposed to de-extinction?

[zipplewrath]

82. Just the same

We don't know enough about what a habitat/ecosystem needs or uses to maintain a balance. It is hard to believe that one could remove an entire species from an ecosystem and have no affect on that system. Something probably changed. Bringing back the Tiger 100 years later will be bringing it back to that changed environment. Maybe a bacteria no longer exists. Maybe other predators have grown in size. Maybe another species will be driven to extinction, in the modern habitat, by the presence of the Tiger. Maybe the tiger will act as a carrier for a disease that hasn't had an effective carrier for 100 years, as such the other animals that would be victims of that disease no longer have a resistance/immunity.

Knew a guy that had a fish tank. Came home one day and several of the fish were dead. His best guess was the fact that the city had cut down a tree outside of his house (on curb). That tree cast shade on the window in the room that the tank sat. The sun now shown on a tank and warmed the water up more than usual. Apparently the tank temperature had been a bit on the high side the whole time, but the fish survived. The sun caused it to cross that line. (Yeah, first this is a guess on his part, and yeah he should have never had the water that warm in the first place. He learned that lesson.)