World Frog Day is a chance to celebrate amphibians, from backyard callers to frogs that spend much of their lives in trees. The wood frog has a particularly surprising way of getting through winter.
As temperatures drop, part of the frog’s body water can freeze. Glucose helps protect its cells until warmer weather allows it to thaw and become active again. On a spring walk, pause near a pond and listen. A chorus that sounds a little like ducks might be wood frogs.
About the observance
https://worldfrogday.org/
More about the featured species
https://home.nps.gov/articles/000/akwoodfrogpheno.htm