That's not a growth, it's the enlarged thumb of a male toad. Those black areas are used to give grip when grasping a female in amplexus.
That's not a growth, it's the enlarged thumb of a male toad. Those black areas are used to give grip when grasping a female in amplexus.
Founder of Frogforum.net (2008) and Caudata.org (2001)
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