Great bustard (Otis tarda) males posturing in Spain
18th-century Memento mori created by a guild in Stary Sącz, Poland
Dennis Sheehan (American, b. 1950)
Early Evening Shadows, 2018
Oil on canvas
A girl eating a watermelon. Photo by Georgiy Soshalsky (1950s).
Bilateral Gynandromorph
Organisms that have a mix of male and female characteristics on each side of their body. They occur in certain insects, birds, and crustaceans due to a genetic anomaly during early development. In perfect bilateral gynandromorphism, the creature's body is divided in a line down the center. One side is male and the other side is female. However, such conditions are exceedingly rare.
A Wood mouse/skogsmus and a Bank vole/skogssork. Värmland, Sweden (August 1, 2020).
Gorky Library, Budapest, 1972. From the Budapest Municipal Photography Company archive.