Pheromone fingers may help poison frogs mate
Some males stick their seductive digits near a female's nose
A mating pair of Anthony's poison arrow frogs (Epipedobates anthonyi) demonstrate cephalic amplexus. The male (left) is holding the female (right) by her head, with his swollen finger closest to her nostrils. Researchers think this positioning may help the male transfer pheromones to the female.
Diana Abondano Almeida