Two scientists, Rick Shine and Robert Mason, figured that the transvestites did not gain any sexual mileage. When males emerge from the dens, they are cold and slow, but basking in the sun is like offering oneself on a platter to predators. By mimicking females, the cold males are immediately enveloped by warm, amorous males. Not only do the transvestites absorb heat from their suitors but by being buried under a pile of them, they are also well-protected from predators. Their first priority is not sex, but getting warm and being safe at the same time.
