Reptiles
Flap-Necked Chameleon
Chamaeleo dilepis · also called flap-necked chameleons
A flap-necked chameleon flares the pair of skin flaps at the back of its head, transforming its outline into something noticeably larger and more intimidating in an instant. It is one of the most successful chameleon species in Africa specifically because it does not need a narrow specialised habitat, thriving across savanna and woodland from one end of sub-Saharan Africa to the other.
Overview
The flap-necked chameleon, Chamaeleo dilepis, is a widespread lizard found across savanna and woodland habitat throughout sub-Saharan Africa. Its flarable neck flaps, independently swivelling eyes, and prehensile tail are all shared broadly with its chameleon relatives.
A generalist among specialists
While many chameleon species remain confined to a single mountain range or narrow forest patch, the flap-necked chameleon has succeeded by staying adaptable, spreading across a genuinely enormous stretch of the African continent.
Status
Least Concern — widespread and stable across suitable savanna and woodland habitat throughout sub-Saharan Africa.
Flap-Necked Chameleon: common questions
What are the flaps on a flap-necked chameleon's head for?
A flap-necked chameleon has a pair of flexible skin flaps at the back of its head that it can flare outward during a threat or territorial display, an action that makes the chameleon appear noticeably larger and more intimidating to a potential predator or rival, giving the species both its common name and one of its most distinctive behaviours.
Does a flap-necked chameleon change colour to hide from predators?
Not primarily, since like other chameleons, a flap-necked chameleon's colour changes are used mainly for communication, temperature regulation, and signalling mood or reproductive condition to other chameleons, rather than functioning mainly as background camouflage the way many people assume.
Why does a flap-necked chameleon have such unusual eyes?
A flap-necked chameleon has eyes capable of moving independently of one another, an adaptation that allows it to scan for prey and potential threats simultaneously in different directions without needing to turn its head, giving the chameleon a genuinely wide field of effective vision.
How common is the flap-necked chameleon compared with other African chameleons?
The flap-necked chameleon is one of the most widespread and commonly encountered chameleon species across sub-Saharan Africa, found across a considerably broader geographic range than many other chameleon species, which tend to be far more restricted to specific regions or even single mountain ranges.