The coast is clear

时间:2019-03-06 04:04:11166网络整理admin

By Joanna Marchant MALES that flash flirty signals at females aren’t necessarily boasting about their sexual prowess. In some fish, males may be conveying information about the safety of their surroundings, coaxing the females into feeling relaxed enough to mate. Males are known to use courting to signal the quality of their genes, but when marine biologists Bob Warner from the University of California in Santa Barbara and Lawrence Dill of Simon Fraser University in Burnaby, Canada, studied a Caribbean reef fish called the bluehead wrasse (Thalassoma bifasciatum), this explanation didn’t make sense. “Females tend to be quite faithful,