One of Nature’s Mysteries To Solve

Hey there!

Seems we’ve had a lot of mystery plants lately. How about a mystery frog for a change!

Mystery # 124

What kind of frog is it, and how can you tell?

I’ll check back for your guesses!


No one ventured out in the heat to take a guess today. A late hint…it’s not by the color. Any of our local large frogs can be brown to tan to green.

This huge hopper is a Bullfrog. One way to tell is by looking at the webbing in a bullfrog’s toes; on the longest middle toe, the webbing does not go all the way to the tip of the toe. But how many of you human readers have been that close to a bullfrog–how many of us squirrels, for that matter? 

The easiest way to tell on a frog sitting out of the water like this old fellow, is by the back. A Bullfrog does not lave those ridges running along the sides of his back. In science-speak, they are called the dorsolateral ridges. For comparison, here is a Green Frog, who does have the ridges.

dorsolateral ridges on Green Frog

See the difference? Hope this helps next time you are lurking around a pond and hopping with curiosity!



3 thoughts on “One of Nature’s Mysteries To Solve

  1. Fascinating. Thank you for that interesting. information. I almost guessed bullfrog but don’t know why. Our local arboretum has them because I can hear their calls. They are much shyer than the turtles, though, so I never get to have a look.

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