UnicornBooty: Dolphin researchers have discovered a first-of-its-kind group of sexy, swinging bottlenose dolphins with open territorial and sexual borders.
Male bottlenose dolphins also were found to engage in extensive bisexuality, combined with periods of exclusive homosexuality. Male pairs, or even trios, cooperate to sequester and herd individual females during the mating season. Most males are also members of second order alliances consisting of 4 to 14 males. Such relationships appear to be long lasting, with one known 7-member group still intact after 17 years.