Animals also choose their mates ... is a strategy used by males to help increase their reproductive success. Polyandry is a group with one female and many males. Polyandry is a reproductive ...

A switch in traditional gender-role behavior gives an advantage to male and female shorebirds called jacanas. Found in tropical regions, jacanas have evolved a social system that confused early ...

Of all vertebrates, gray foam-nest tree frogs exhibit the most extreme form of simultaneous polyandry, or a female mating with multiple males, says behavioral ecologist Phillip Byrne of the ...