How many genders are there ?

2 - Male and female. The rest I would not call gender, it is rather type of people ( Initially there are only two )

2, because you either have a schlong or you dont. Aka what differentiates between the two genders that exist, male and female.

only 2 if you say their are anymore you are an actual retard, thank you for coming to my ted talk

Like many of you, I agree that there are biologically only two genders. Sometimes it feels other people make up more just to have a reason to feel "special".

there are 2 genders if you choice to be a women your a women if you choice to be a man your a man if you are born a man your a man if you are born a women your a women there is no in-between

I don't care, as long as they tell me what they prefer to be called.

2, You get what you get and you don't throw a fit. I wish they taught people that when they were in school >:(

I think there are 2 genders Male and Female but with 4 flavours

Everyone has a different opinion, some say 2, 3, 1000.

You have your male, and your female. Anything else would be something someone wishes to identify as. But there's in fact only 2 genders