1 > Actually, the only sure way to tell boys and girls apart is by their _bodies_. If you're a boy, you have a penis, scrotum, and testicles. If you're a girl, you have a vulva, clitoris, and vagina.
3 > These male and female body parts that show on the outside are called your genitals. Boys' genitals are easier to see than girls', but both are equally important.
5 > —_What's the Big Secret? Talking About Sex With Girls and Boys_, Laurie Krasny Brown, Ed.D., and Marc Brown (published 1997)
7 https://www.reddit.com/r/Parenting/comments/ij4npe/mommy_im_actually_a_girl/
9 https://www.smbc-comics.com/comic/before-2
11 Planned Parenthood on "How to Know If Your Kid Is Transgender": https://www.youtube.com/watch?v=qJdafLVf6xo
13 Trans Kids: It's Time to Talk film: https://archive.org/details/TransKidsItsTimeToTalk
15 HBO documentary Transhood