The Cuban Treefrog (Osteopilus septentrionalis) is the largest treefrog in North America, growing up to 5 inches or more. The females are much bigger than the males. They are an invasive species, first reported from Key West in 1931. They have now spread through south and central Florida.

They are voracious eaters, consuming native frogs and lizards and even members of its own species. Biologists are recommending freezing the frogs as a humane way to kill them if you find them in Florida. One way to identify the frog is to grab the frog, move the skin around on top of the frog's head. The skin on the head of a Cuban treefrog should not move because it's fused to the head.

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Photo © 2008 by George Lin