#Sex and
#gender is much more complicated in
#nature than people like to pretend. For instance, there is a
#bird that effectively has four 'genders'.
#Wolves have also recently been developing a similar system in
#Yellowstone where black wolves prefer to mate with gray/tan wolves, due to
#disease making a mixed population more desirable (black wolves have better disease resist, but they are far less stealthy). And of course, there are one-sex
#species, such as the famous
#lesbian #lizards which still require, ahem, 'activity' to activate the eggs and so do it with other females.
#science #news #lgbthttps://www.nature.com/articles/539482a