Billions and billions. If there is life out there, surely the diversity to be found is much greater than we can ever imagine. It would dwarf the minute differences that we judge and condemn each other on. Those who cannot handle 2 or 3 sexual orientation variations in 2 genders here are really going to have a hard with a species of, say 75 genders. Queers meanwhile, like other minorities, have learned to embrace diversity.
Diversity is the poorly kept secret of nature.
Life flourishes because of the ingenuity and adaptability that diversity contributes. So we enthusiastically celebrate the still undiscovered kaleidoscope of life in our vast universe. It's embedded here. Click on the panel at left to stop, replay, or pause the sound.