Ann & Steve Toon / Namaqua chameleon (Chamaeleo namaquensis), Namib Desert, Namibia, April

Hiroya Minakuchi / Panther Chameleon (Chamaeleo pardalis) portrait showing eyes pointing in different directions, native to Madagascar

Ben Cranke / Desert Chameleon (Chamaeleo namaquensis) catching insect, Namib desert, Namibia

Barrie Britton / Male Panther Chameleons (Furcifer pardalis) fighting. Nosy Be, Madagascar. Photograph taken on location for BBC 'Wild Madagascar' Series, January 2010

Barrie Britton / Nosy Be Pygmy Leaf Chameleon (Brookesia minima) female, the world's second smallest reptile species, Nosy Be, Madagascar. Photograph taken on location for BBC 'Wild Madagascar' Series, January 2010

Jouan & Rius / Small Chameleon hanging from a persons arm with one leg, South Madagascar

Piotr Naskrecki / Horned Leaf Chameleon (Brookesia superciliaris) camouflaged against brown leaf, Madagascar

Gerry Ellis / Parson's Chameleon (Calumma parsonii) female, eastern rainforest, Madagascar

Ingo Arndt / Panther Chameleon (Chamaeleo pardalis) male, Madagascar

Robert Valentic / African chameleon (Chamaeleo africanus) female in shrub. Divari Beach, Peloponnese, Greece. August 2016.

Adrian Davies / Panther chameleon (Furcifer pardalis) catching Locust with tongue. Controlled conditions. Sequence 2 of 4.

Fabio Pupin / Robertson dwarf chameleon, (Bradypodion gutturale), South Africa, February . Non-ex.