Discovered: Male fish who engage in same-sex flirting lure in
female fish; cheese dates back 7.5 millennia; Americans love
public transportation once they give it a chance; depressed mice
cheer up after brain stimulation. Gay fish attract more female
mates. Nature has its own version of a pop culture archetype—the
highly attractive man who, unfortunately, remains unavailable to
the women swooning over him. A team of researchers led by
University of Frankfurt's David Bierbach has found a species of
tropical fish in which males who flirt with other males are
perceived as more attractive by potential female mates. They
observed Poecilia mexicana, or Atlantic mollies, engaged in
"mate copying," meaning that females will try to mate with a
male fish they've seen interacting sexually with members of
their own sex. "Males can increase their attractiveness towards
females by homosexual interactions, which in turn increase the
likelihood of a male's future heterosexual interactions," says
Bierbach. "We do not know how