Sex is a messy, inefficient method of reproducing, but most multicellular organisms have evolved to rely on a partner regardless. It’s generally accepted that species accept the inefficiency of sexual reproduction because something about the process gives us an evolutionary boost. A new study used 50 generations of beetles to examine just how important sexual selection — the act of choosing one potential partner over another — is to the survival of a species.
From a purely biological standpoint, the existence of the male sex is kind of perplexing: When it’s time to create a new generation, the males of a species often contribute nothing but genetic material to the mix.
“Almost all multicellular species on earth reproduce using sex, but its existence isn’t easy to explain because sex carries big burdens, the most obvious of which is that only half of your offspring — daughters — will actually produce offspring,” lead author and UEA professor Matt Gage said in a statement. “Why should any species waste all that effort on sons? We wanted to understand how Darwinian selection can allow this widespread and seemingly wasteful reproductive system to persist, when a system where all individuals produce offspring without sex — as in all-female asexual populations — would be a far more effective route to reproduce greater numbers of offspring.”
The GLP aggregated and excerpted this blog/article to reflect the diversity of news, opinion and analysis. Read full, original post: Scientists examine why men even exist
