Green Frog Dimorphism

green frog

The Green Frog (Lithobates clamitans) is native to eastern North America. These frogs are very territorial, especially the males. You can differentiate their sexes since they are dimorphic (showing observable differences in form, color, size, or structure between sexes). For example, females are usually larger than males. However, the male tympanum (located right behind the eyes) is twice as large as the eye and has a prominent yellow throat during breeding season, while the female’s tympanum is about the same size as the eye, and their throat appears in shades of green, brown, or gray.

You can find Green Frogs near ponds, roadsides, streams, and other temporary bodies of water. Unfortunately, increased temperatures and chloride levels in water have impacted amphibian populations. At the Watershed Reserve, the frogs are active, so while walking on the trails and near streams or ponds, look on top of logs, rocks, or near the water.

Based on this article, what sex do you think this frog is?

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