Latest Sexual selection Stories
It's crazy what some birds will do to impress the ladies. But a new study shows that the gap in color differences between males and females is shrinking as both fight to survive.
Males in many species compete to mate with an adult female, and when they finally gain access to her, will kill off the offspring of other males she has mated with in order to make her more receptive to his advances.
Male chimpanzees that tend to be sexually aggressive toward females have more reproductive success than less aggressive males, according to a new genetics and observational study in the journal Current Biology.
Most mammal reproduction studies aim to not only discover who the fathers are but also to learn why some males sire more offspring than others.
While most hummingbirds primarily use their beaks to drink nectar from flowers, male long-billed hermit hummingbirds also use theirs as weapons during mating.
And you thought the sexual battles between people could get weird and fierce? Try ants. In a new study, biologists at the University of Vermont have discovered some queen ants that make sexual bondage into a life and death fight.
The magnificent plumage of the peacock may not be quite the sacrifice to love that it appears to be, University of Leeds researchers have discovered.
In a new study, researchers mated worms of different species and found that the females’ lifespans and number of offspring were drastically reduced compared with females mated with the same
UC Riverside research shows fish with placentas are smaller and less brightly colored than non-placental fish
It's official (in the horned beetle world at least), females prefer courtship over competitiveness – and it doesn't matter about the size of your mandibles either.