North American Green Frog (Lithobates clamitans) Minnesota Seasons Dangerous' tanning products promoted by influencers BBC News Green Frog (Lithobates clamitans) Amphibians and Reptiles of Iowa This guy injected himself with a drug called Melatonan II for 5 months. Here's his before after. : r pics Green Frogs (Lithobates clamitans) 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,