Scientists have found a new culprit in spreading the disease that’s been driving the world’s frogs to the brink of extinction: crayfish. In the last few decades, the disease caused by the chytrid fungus has been a disaster for frogs and other amphibians. More than 300 species are nearly extinct because of it. Many probably have gone extinct, but it can be difficult to know for sure when a tiny, rare species disappears from the face of the Earth.
Link: NationalGeographic.com