It is true that just like humans, all kinds of animals, including the giraffe can be homosexual. For these animals, there is documented homosexual behavior of one or more of the following kinds: sex, courtship, affection, pair bonding, or parenting.
Another interesting fact is that giraffes have actually often been referred to as “especially gay” due to the fact that they are often found engaging in same-sex sexual behavior, more than male-female (heterosexual) sex. Newer research has shown that same sex behavior is a nearly universal phenomenon in the animal kingdom, common across species. Furthermore, homosexual behavior is best known from social species.