// are there more than 2 sexes //
yes. there are 6.
X – Roughly 1 in 2,000 to 1 in 5,000 people (Turner’s )
XX – Most common form of female
XXY – Roughly 1 in 500 to 1 in 1,000 people (Klinefelter)
XY – Most common form of male
XYY – Roughly 1 out of 1,000 people
XXXY – Roughly 1 in 18,000 to 1 in 50,000 births
if, when you said "are there more than 2 sexes" you really meant "gender" rather than sex - well at this time there are 68 terms that describe gender identity and expression.