A frog in Anhui Province in China warbles and flutes with so much versatility that researchers, upon first hearing it, couldn't believe it was what it is.
Frog calls rarely show a lot of diversity, says Albert S. Feng of the University of Illinois at Urbana-Champaign. The Boophis frogs of Madagascar once wowed the world with 28 distinct types of calls–which is why Feng rates the recent discovery in China "extraordinary."
He and his colleagues were getting frustrated one night waiting for a little Amolops tormotus frog to make some noise. Feng and another researcher took a break from their vigil to try to find the source of warblerlike trilling coming from a nearby tangle of underbrush. When they got there, they didn't find a bird at all; they found a frog. "Upon