Zoos do take care of their animals just not well enough. Some zoos don't even put these animals in their correct habitat based on whether or not they need small or large space. They do have regular feeding times and everything but these animals aren't getting their proper care that they have in the wild. To live the rest of your life in a box for peoples joy. Most zoos that go out of business leave their animals there and don't put them where they came from, which is horribly wrong.
(I don't know what evidence to include but you can use this for some info)