Page last updated at 21:53 GMT, Wednesday, 3 September 2008 22:53 UK

The splendid leaf frog

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The Costa Rica Amphibian Research Center is one of the few areas in Costa Rica where frog populations thrive.

Elsewhere numbers have plummeted.

Here, Andrew Gray, from the University of Manchester, takes a look at some of the splendid leaf frogs that can be found at the site.

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