Last month, a frog died in an Atlanta botanical garden. With it went an entire species never to hop along the Earth again. Biologists at Zoo Atlanta who'd looked after the frog for the past 12 years called him 'Toughie.'
Frogs and other amphibians are dying off at an alarming rate. It's estimated that 200 species of frogs have gone extinct since the 1970s, and many fear it's a harbinger of greater biodiversity loss that will come for birds, fish, and mammals too.