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Evi Hanninger, PhD Candidate in Marine Science, Te Kunenga ki Pūrehuroa – Massey University

A new way to measure the age of dolphins opens a window onto the lives of these iconic animals

Carolyn Cole/Los Angeles Times via Getty Images

Knowing the age of an animal reveals key information about how long it lives and when it reproduces.

Age is also essential to understanding the health of a population and how well it can cope with threats such as pollution and habitat loss.

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