Drowned out by waterfall sounds, glass frogs "wave"
Waterfall in Ecuador (Rodrigo Buendia/AFP via Getty Images)
Glass frogs in Ecuador wave their hands and feet to signal potential mates that they are available when the cacophony of nearby waterfalls obscures some sounds, according to findings reported in Behaviour. The newly observed behavior accompanies a high-pitched call that carries over the waterfall noise, researchers say
Click on title above to open the science article.  The short video – depicting a frog “waving” – is especially fascinating