For over three decades, frog populations worldwide have been decimated by a fungal organism called Bd for short. While spreading like wildfire through every continent except Antarctica, Bd has caused the possible extinction of up to 200 frog species.

Now, researchers are cautiously optimistic that the tide may be turning. Some frogs appear to be developing natural resistance to Bd. Other species have moved to warmer habitats, exploiting Bd’s sensitivity to higher temperatures. Conservation biologists have been helping in this regard by building so-called frog saunas, easily accessible by frogs looking for warmer places to hang out. Some researchers are even investigating a virus that attacks Bd.

After succumbing to Bd for years, frogs may finally be developing ways to fight back.