is typically observed in the animal kingdom, where normally socially monogamous species, such as birds, pair with another of their species outside their mating pairs. For example, a female may mate with one male, but rely on another male for food.
is typically observed in the animal kingdom, where normally socially monogamous species, such as birds, pair with another of their species outside their mating pairs. For example, a female may mate with one male, but rely on another male for food.