claim: The Fly was first released in 1999.
evidence: The chameleon is among the most highly visually-oriented lizards , using this sense in prey capture , mating behavior , and predator avoidance .. prey. prey. predator avoidance. predator avoidance. Unique features of chameleon vision include a negative lens , a positive cornea , and monocular focusing .. negative lens. negative lens. cornea. cornea. monocular. Monocular vision. The development of the chameleon visual system could have evolved to aid in prey capture and / or in predator avoidance .. prey. prey. predator avoidance. predator avoidance. The angle , or amplitude , of eye movement in chameleons is very large for a vertebrate and the eyes move independently of each other .. amplitude. amplitude. vertebrate. vertebrate. This allows a chameleon to watch an approaching object while simultaneously scanning the rest of its environment .. Chameleon eyes protrude laterally from the head , giving the lizard panoramic sight .. lizard. lizard. panoramic. panoramic. An eyelid fused to the pupil protects the eyes , leaving only a small part exposed .. With a negative -LRB- nearsighted or concave -RRB- lens and a positive -LRB- farsighted or convex -RRB- cornea , chameleons use a method of monocular focusing to judge distance called corneal accommodation .. cornea. cornea. monocular. Monocular vision. Each eye focuses independently , which is achieved by the chameleon eye 's unique anatomy of separated nodal and center points of the eye .. Finally , `` striated rather than smooth ciliary muscle in sauropsids '' allows for rapid focusing .