Though rumored for quite some time, scientists have officially reported the existence of maned female lions and have documented their more typically male behavior.

Geoffrey D. Gilfillan of the University of Sussex in Falmer, UK, and colleagues have observed maned five lionesses at the Moremi Game Reserve in Botswana’s Okavango delta. He and his teammates reported their findings in the African Journal of Ecology.

In males, long manes help attract females (they’re thought to indicate sexual health). Males also tend to mark their territory and roar more frequently. But this small set of Botswanan female lions took on some of these characteristically male behaviors—they even mounted other females. Gilfillan focused on one lion in particular, SaF05, which he’s been observing since 2014.

The team says that these lions’ manes are likely the result of high testosterone levels. Here’s Karl Gruber, reporting for New Scientist: