Homosexual behaviour in primates has a deep evolutionary basis and is more likely to occur in species that live in harsh environments, are hunted by predators, or live in more complex societies, scientists said Monday.
Males or females of the…

Homosexual behaviour in primates has a deep evolutionary basis and is more likely to occur in species that live in harsh environments, are hunted by predators, or live in more complex societies, scientists said Monday.
Males or females of the…