Jun 11, 2025
Uncharismatic Fact of the Day
Madagascar is full of unique animals, from the smallest insects all the way to the top of the food chain! Fossas occupy their own special family, Eupleridae, and feature plenty of special physical traits. One such trait is their sexual growth: from ages 1-2, female fossa undergo a process called transient masculinization, wherein they develop an enlarged clitoris resembling a penis and secrete an orange substance that colors their underside in the same pattern as the male's scrotum sac. These developments fade with age, and don't impede reproduction in any way.
(Image: A fossa (Cryptoprocta ferox) by the Chester Zoo)
