From mesmerizing patterns to brilliant hues ... with a vibrant green or yellow iris that often matches the chameleon’s skin ...

But we can't let the chameleon get all the fame ... changing the color of their skin. Like cuttlefish, octopuses can match a variety of patterns, but they can't match any pattern like Hank could.

A chameleon’s colorful beauty is truly skin deep. Under the transparent outer ... distinct color and pattern changes of chameleons. Chameleons have many other features that distinguish them ...

Knobbly nasal ornaments. A skin flap circling the neck like a lace ruff on an Elizabethan noble. Of all its corporeal quirks, the chameleon is most defined by one, noted as far back as Aristotle ...

Due to specialized cells in their skin, they can adapt their coloring to absorb heat, reflect sunlight, and communicate their feelings. But one rather extraordinary chameleon continues to change ...