How to Tell Your Chameleon's Gender

Chameleons, with their long life expectancy, hearty countenance and flamboyant color-changing, are commonly kept as pets by reptile lovers. Unlike many other species of lizard, several marked physical differences distinguish male and female chameleons. To determine the gender of a chameleon, take note of the animal's tarsal spurs, head crest, size and coloring.

Things You'll Need

  • Ruler
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Instructions

    • 1

      Check for tarsal spurs. These triangular bumps protrude from the hind legs of males, just behind the feet. The presence or absence of tarsal spurs can determine the gender of a chameleon of any age. Other sexual differences become pronounced only in adulthood.

    • 2

      Measure the head crest and observe its shape. A male chameleon has a larger, more pronounced and erect head crest than does the female. The head crest of a male chameleon measures from 1.5 to 2 inches, and extends straight up from the top of the head. A female's head crest measures 1 inch and curves back toward the body.

    • 3

      Measure the length of the chameleon, from the nose to the tip of the tail. A typical male chameleon grows to a length of 16 to 20 inches, while a female reaches just 12 to 14 inches.

    • 4

      Observe the coloration. Although chameleons are famous for their color-changing abilities, a healthy male displays brighter and more pronounced colors, while a female's coloration is darker, more muddled and subdued.