Glass frogs living near roaring waterfalls wave hello to attract mates

Source: Science Daily

A conservationist has discovered that the glass frog Sachatamia orejuela can be added to the list of species that make use of visual cues in response to their acoustic environments. This is the first time a member of the glass frog family (Centrolenidae) has been observed using visual communication in this manner.

https://www.sciencedaily.com/releases/2021/01/210115155338.htm