How long do animals live? Although the question may seem small, it is not easy to answer - especially in the case of independent animals, it is very difficult to determine the date of birth and death for all members of a given population. For comparison, the zoo carefully records the births and deaths of animals. However, there are now studies that allow us to compare demographic parameters, including life expectancy, with respect to older people known in nature. Smaller species live longer A team of researchers led by the University of Lyon and the University of Zurich estimated the demographic parameters of more than 50 mammal species. Scientists have found that more than 80% of mammals have studied in zoos - such as the African buffalo, deer, zebra, vulture or lion. “All 15 species of predators in our database have lived longer in zoos,” said Marcus Klaus, a professor of nutrition and biology at the University of Zurich and wildlife. "Even for wildlife, wildlife doesn't se...