Life span definitions

Life span

How long an animal usually lives.
Found on http://en.wikibooks.org/wiki/Wikijunior:Big_Cats/Glossary

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life span

the period of time between the birth and death of an organism.[10 related articles]
Found on http://www.britannica.com/eb/a-z/l/48

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Life-span

The maximum length of life that is biologically possible for a member of a given species.
Found on http://www.encyclo.co.uk/local/20212

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