This is one of those cases where I realize how little I know and how little experience I have in regards to Mountain Lions. I am sure an experienced puma biologists could look at the picture below and say, duh, that’s a male, or duh, that’s a female…well even after doing some more research I once again have no clue.
From Ken Logan and Linda Sweanor’s 2001 “Determining the Sex of Treed Cougars“:
“Male adult and subadult cats have a conspicuous black spot of hair, about 1 inch (2.5 cm) in diameter surrounding the opening to the penis sheath behind the hind legs and about 4 inches (10 cm) below the anus. The anus is usually hidden by the base of the tail. In between the anus and black spot is the scrotum, which is covered with light to dark brown hair and will usually appear as another dark spot.”
“Female adult and subadult cats do not have this conspicuous black spot of hair. The area is entirely covered in white hair. The anus is directly below the base of the tail and the vulva is directly underneath the anus. Both the anus and the vulva will usually be hidden by the base of the tail.”
So my guess would be female, but then there is that little amount of dark hair just to the left of the tail, but is that too close to the anus. What do you think?
Note: This image was taken two weeks (almost down to the minute) after the second image from the Aptos Mountain Lion Characters Post