The male urodele deposits a spermatophore that the female picks up with the lips of her cloaca.
Most mosquitoes live about a month, but it takes about 14 days for the dengue virus, which the female picks up by biting an infected human, to mature in her gut and reach her salivary glands, ready to be injected into the next human.
Although previous work suggested that the female picks her paramours, researchers couldn't tell how she arranged the trysts to get the most reproductive bang for her, well, bang.
After laying, the female picks up the auger-shaped egg cases and wedges them into crevices to protect them from predators.
The male typically deposits a spermatophore on the ground or in the water according to species, and the female picks this up with her vent.
In salamandrids, the male deposits a bundle of sperm, the spermatophore, and the female picks it up and inserts it into her cloaca where the sperm is stored until the eggs are laid.
Although some urodelan families reproduce by external fertilization, most extant salamanders have internal fertilization, in which the female picks up the male spermatophore with her cloaca without copulation.
Scientists theorized that male guppies' orange spots reflected their health and food-finding prowess--important considerations for females picking a mate.
"The teen has to get Mom or Dad involved, while the adult female picks up the phone and calls the doctor".
He let his only real love story miserably fail because he is in love with the mystery of youth – that inaccessible, fleeting kind of spirit that he sees in the eyes of his young male and female pick-ups".
