Happy Fun Science Friday.
You did not mistakenly read the title, today we bring you the discovery of the first female penis in the animal kingdom.

Photo Credit: Current Biology / Yoshizawa et al.
Yoshizawa, from Hokkaido University in Japan, and his team of researchers documented this phenomenon of sexual role reversal in 4 species of rather unassuming insects in Brazil’s Peruaçu River Valley. When insects of the genus Neotrogla mate, the female mounts the male and penetrates his vagina-like opening with her penis.