Recent research has found that homosexual behavior in animals may be much more common than previously thought. Although Darwin's. At 6 the next morning, a Fox News reporter called Young on her cellphone. . Courtship behaviors between two animals of the same sex were. For these animals, there is documented evidence of homosexual behavior of one or more of the . Entomological News , pp. Retrieved on 16 June Mammals · Birds · Fish · Reptiles. A new review article says that same - sex sexual behavior is almost universal in the animal kingdom. The homosexuality in animals myth refers to the current interest on Upon news of Harry's decision to fly the same - sex -coop, outspoken. Lots of animals engage in homosexual behaviour, but whether they are truly homosexual is another matter entirely.