More from Biological Exuberance: Animal Homosexuality and Natural Diversity by Bruce Bagemihl. Pairs of males, pairs of females, pairs who mate heterosexually only so one of them can get an egg of their own i. what would be called among humans surrogate parenthood , and parents fostering cygnets to whom they have no biological connection: all of these are relatively common, naturally occurring and well-documented family arrangements for Swans. Many birds may only nest once or twice in a lifetime of years.
Each spring when they return to the Public Garden the Mayor leads a grand parade and hundreds of kids arrive dressed as swans and ducks. They even nicknamed one swan duo that never leaves each other's side "Romeo and Juliet. Only, it turns out neither swan is Romeo -- they are both female. This happy same-sex couple exhibits all the behaviors of two heterosexual swans that have mated for life, said Dr.
Topic: Animals. Swan researchers say some bird behaviours aren't so different from human behaviours. ABC News: Danielle Bonica. Swans are symbols of love, devotion and grace.
Over 1, animal species engage in same-sex coupling and parenting. Even more regularly engage in homosexual or bisexual relationship. Some can change their sex at various points in their lives sometimes more than once , and some choose to express themselves as the opposite sex. All this to say, non-heterosexuality is nothing more than completely natural.