What Causes Frogs to Have More Than Four Legs?

Frogs across the United States are showing up with something very odd- extra legs.  Scientists have been studying these frogs to find out what is causing this strange phenomenon.  They have identified the parasite (Ribeiroia ondatrae) infection linked to amphibian malformations in the western United States:

What makes cheese….so stinky?

What lives in cheese? What makes cheese so delicious? It’s the bacteria, fungi, mites, and maggots living in it, of course! Check out Gross Science’s Anna Rothschild as she explores the stink, behind the yum, of cheese.