numb3rb0y

numb3rb0y t1_iqt7wm8 wrote

Hyla arborea are very difficult to sex visually, males and females are externally pretty identical when they're not inflating their vocal sac, either you very closely examine their inner forelimbs for nuptial pads or you wait for them to call. It says they collected reproductive males during breeding season so I guess they captured calling frogs.

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