Male parental care is quite rare in nature, but a variety of frogs throughout the tropics show instances where the father transports the young on his back. In most cases this involves carrying either eggs or tadpoles, but in a few New Guinean species, such as this Sphenophryne cornuta, actual froglets ride in piggyback fashion. A member of the Microhylidae, these frogs have direct-development larvae which means that the tadpoles morph into tiny frogs before leaving the egg, an adaptation…
