Chytrid’s frog-killing toll has been tallied — and it’s bad

The invasive fungus has devastated more species than have cats and rats

mossy red-eyed frogs

UNDER THREAT  Endangered mossy red-eyed frogs (Duellmanohyla soralia), like this one from Honduras, are among at least 500 amphibian species whose numbers have declined due to chytrid fungal infections, a new tally shows. 

Jonathan E. Kolby/ Honduras Amphibian Rescue & Conservation Center

A skin fungus that has plagued frogs and toads worldwide now holds the title of being the world’s worst invasive killer, displacing cats and rodents.