IN CONTEXT

KEY FIGURE

Malcolm McCallum (1968–)

BEFORE

1989 The formerly common golden toad of Costa Rica is declared extinct. Various explanations are proposed.

1998 In the US, many poison-dart frogs die at the National Zoo in Washington DC. The chytrid fungus is implicated as a cause.

AFTER

2009 The Kihansi spray toad of Tanzania is declared extinct in the wild as a result of chytrid infection.

2013 A second species of chytrid fungus causes the near- extinction of fire salamanders in the Netherlands.

2015 The chytrid fungus is detected in amphibians in 52 out of 82 countries sampled.

Since the 1980s, hundreds of species of amphibians have ...

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