When males are forced to compete for females, new species form more rapidly. This has been shown in a new study where the researchers compared beetles allowed to mate freely with groups of the same ...

Sexual selection drives the evolution of diverse traits across animal taxa by favouring characteristics that enhance mating success through mate choice and intra‐ or inter‐sexual competition.

This article was published in Scientific American’s former blog network and reflects the views of the author, not necessarily those of Scientific American Sexual selection – the phenomenon in which ...