the-awkward-turt:

profeminist:

Source

Want more info? Here ya go: 

This Biology Teacher Disproved Transphobia With Science 

ALSO:

Sex redefined

“The idea of two sexes is simplistic. Biologists now think there is a wider spectrum than that.”

More on anti-trans arguments as bad science

As a biologist I am reblogging this so hard.

Biological sex is not and has never been a binary. The complexity of the natural world cannot be contained in neat little societal boxes. Stop using science to justify your bigotry.