Back in the 1930s and 1940s, the African Clawed Frog was discovered to be a heck of a good pregnancy test. The species is indigenous to southern Africa and is immune to something else indigenous to the region — chytrid fungus. So when the frog was shipped around the world for this medical use, it brought the chytrid fungus along for the ride.  Wherever the fungus took root in countless new places around the world, it was fatal to 80% of the new species it encountered. So what’s it really do? See “TBS Program…” post from yesterday. Or here are two articles: a good overview by the Australian National Parks and Wildlife Service and one filled with science jargon by the U.S. Centers for Disease Control.