Author: Kay Holekamp
One of the most mysterious and bizarre characteristics of the spotted hyena is the heavily masculinized genitalia of the female. Here you can see adult female Gucci (wearing the radio collar) investigating the genitalia of adult female Carter (who has her butt toward the camera and her tail raised) during a greeting ceremony at the den (that's Gucci's cub, Alfredo, scratching himself while his mom greets). Notice that Carter has a male-like pseudoscrotum and a male-like phallus.
Notes From Kenya is a blog run by the students in the Holekamp Lab at Michigan State University, College of Natural Science, East Lansing, Michigan, U.S.A.