They say love is blind, but if you’re a queen honeybee it could mean true loss of sight.
New research finds male honeybees inject toxins during sex that cause temporary blindness. All sexual activity occurs during a brief early period in a honeybee’s life, during which males die and queens can live for many years without ever mating again.
UC Riverside’s Boris Baer, a professor of entomology, said males develop vision-impairing toxins to maximize the one fleeting opportunity they may ever get to father offspring.
“The male bees want to ensure their genes are among those that get passed on by discouraging the queen from mating with additional males,” said Baer, senior author of the study that discovered these blinding findings published today in the journal eLife. “She can’t fly if she can’t see properly.”
The toxins identified by the team are proteins contained in male bees’ seminal fluid, which is a substance that helps maintain sperm. Earlier work by Baer’s team also discovered honeybee seminal fluid toxins that kill the sperm of rivals. All honeybees make these proteins, though some may make more of it than others. MORE