Jackson’s Chameleon (also known as Jackson’s Horned Chameleon, or Kikuyu Three-Horned Chameleon) is native to East Africa, but also introduced to Hawaii, Florida, and California. Jackson’s Chameleons are native to woodlands at altitudes of 5,000 to 8,000 feet in south-central Kenya and northern Tanzania. In Hawaii, they are found mainly at altitudes of 300 to 3,300 feet in wet, shady places. Historically this population was the primary source for the exotic pet trade in the U.S., but exports from Hawaii are now illegal, to prevent establishment of feral populations for capture and sale. Jackson’s Chameleons are also called Three-Horned Chameleons because males possess three brown horns: one on the nose and one above each superior orbital ridge above the eyes, somewhat reminiscent of the ceratopsid dinosaur genus Triceratops. The females generally have no horns. Their coloring is usually bright green, with some individuals having traces of blue and yellow—but like all chameleons, they change color quickly depending on mood, health, and temperature.