By Victoria Gill
Science reporter, BBC Nature
Loggerhead turtles take almost half a century to reach maturity, say scientists.
A female turtle, the researchers report in the journal Functional Ecology, will not start to lay eggs until she is 45.
This estimate, based on examination of several decades of data on the turtles' growth, has implications for conservation efforts.
It reveals how long it takes for turtles hatched at a protected nesting site to return to that site to breed.
Prof Graeme Hays from the University of Swansea, one of the authors of the study, explained how reaching maturity so slowly meant that the turtle population was "less resilient" than previously thought.
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more:
http://www.bbc.co.uk/nature/15625291