Eastern Box Turtle (Terrapine carolina). Head of a female showing brown iris of the eye. Example of sexual dimorphism.

---

Eastern Box Turtle (Terrapine carolina). Head of a female showing brown iris of the eye. Example of sexual dimorphism, or dichromatism.

---

Size: 5616px × 3744px
Photo credit: © Joe Blossom / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: america, american, animal, animals, box, carolina, chelonia, chelonians, close, close-, color, colour, damp, dichromatism, dimorphism, east, eastern, emydidae, eye, eyes, female, format, gender, horizontal, identification, iris, landscape, north, orientation, pasture, red, reptil, reptile, reptiles, reptilia, reptils, sex, sexual, terrapene, testudinata, testudines, turtle, turtles, wild, wildlife, woodland