Mutated Genital Biting Mice
After tweaking the genes of some laboratory mice, Swiss scientists have produced female mice that exhibit an unusual sexual behavior. They bite the genitals of their partners. The male mice respond by running away in terror.
This unusual trait is passed through the female line, from mother to daughter. The scientists aren’t sure if humans have a similar ‘genital-biting’ gene, but they’re hopeful that “future studies addressing the genetic basis of behavior in humans may be very informative in this respect.”
