Some of the arguments for and against keeping animals in zoos.

Today I will talk about zoos: are they good or bad to animals? Do animals are comfortable in zoos or not? Zoos are a great way to show some of the animals that you can't see them elsewhere. It's good to learn a little about these animals and know them.
Pros
It's a good system to protect animals that have to face extinction, that are abandoned or that will be used in medical experiments. Zoos are the only chance that these animals have to survive.
Zoos pretend to simulate the real habitat of animals.
Now zookeepers have specialist knowledge and often are specialised in a particular animal. This helps to the animals being comfortable.
Also zoos offer scientists to find the benefit of each animal.
Cons
Zoos can't simulate the appropriate conditions for every species of animal. For example, some animals need to run a lot, in a free habitat, but they can't because of the little place where they are.
Some anti-zoo supporters think that zoos are a benefit for people more than for animals.
The animals are living in habitats smaller than they are used to, the animals haven't much privacy. This can cause depression in the animals.
They think that living in captivity is prejudicial to animals more than a benefit.

I can't take place in any position because both pros and con have good arguments, so it's difficult to talk about this topic. I think that the only that really matters is the wellbeing of animals.