I was thinking that animals in zoo's have better lives but shorter live expectancies. Does this mean that if any creature lives in a concentrated habitat live short lives?
closed as off-topic by kingledion, L.Dutch♦, Hohmannfan, James K, Mołot Mar 10 '17 at 7:36
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Both yes and no. There are some animals that live good, long lives in an enclosure, never knowing they're being protected.
Other animals know they're not in their "Natural" habitat. Some don't care, others get stressed out and die quicker. Interactions with people can also influence lifespan. Ants in an ant farm aren't really aware they're being watched, while a polar bear most certainly does.
Not all animals have shorter lives in zoos. I don't know all the reasons but I think that one factor is if the creature doesn't have the intelligence to know that it is in captivity, its lifespan is longer because of the lack of predators and other threats (plus the very good health plan you get as a zoo resident).
Also, enclosure size to animal size is a factor. If the enclosure is big enough that the animal doesn't know it's in a zoo, there's no ill effect.