ELEPHANTS DIE AT ZOOS FASTER???!!?? IS THAT TRUE???

According to the researchers, they found out that animals like the African elephants, "do" often die around the age 19. But those in the wild, can live up to about 56 years old!! Why's that?

These elephants at the zoo, suffer from having bad health (may include of over weighted & stressed). Now that elephants are suffering more and more, scientists are telling zoos to halt taking all kinds of elephants from the wild... And! To solve this problem that's now occurring!!

(Picture from "THIS" website) The zoos got the message and told them that they had already tried their
best to help those elephants.

LINK:
http://news.bbc.co.uk/cbbcnews/hi/newsid_7770000/newsid_7778800/7778874.stm