Animal in zoos

ZOO is place. There is a lot of farm and wild animals. When you go to ZOO you must buy ticket. There are keeper who care for animal.

Animal in zoo have enough food and drink so they are never haungry.
Animal in zoo haven't got any predators so they are safe.
Animal in zoo have vet so they are not sick.

Animal in zoo are in cage so they are not free.
Their life is very bored.
Some animal in zoo are mentally sick.

I thing that are zoo good thing for people, but not for animals.

OR IS THIS ANIMAL HAPPY?