"Asexuality" refers to the condition in which there is no experience of desire or sexual attraction. Unlike celibacy, which is a choice, asexuality is a sexual orientation. Asexual people have the same emotional needs as everybody else and are just as capable of forming intimate relationships. A 2004 study showed that 1% of the population is asexual. Among other things, it seems that this condition is not limited to humans, but occurs at more or less the same percentage in some animal species (especially sheep, mice, and hamsters). This should not be confused with the lack of desire to form romantic relationships.