Laurie Campbell / Common / Viviparous lizard (Zootoca vivipara) mother with young. Burnmouth, Berwickshire, England, UK.

Bernard Castelein / Viviparous lizard (Zootoca vivipara), male basking on lichen covered rock. Cote d'Opale / Opal Coast, France. May.

Bernard Castelein / Viviparous lizard (Zootoca vivipara), male on lichen covered rocks, portrait. Cote d'Opale / Opal Coast, France. May.

Fabio Pupin / Viviparous lizard, (Zootoca vivipara), close-up of the head, Alps, Italy, September . Non-ex.

Fabio Pupin / Viviparous lizard, (Zootoca vivipara), Alps, Italy, August . Non-ex.

Fabio Pupin / Viviparous lizard (Zootoca vivipara) in habitat. Non-ex.

Robert Valentic / Marbled velvet gecko (Oedura cincta) sub adult male, Acacia shrubland south of Charleville, Queensland, Australia.

Robert Valentic / Gulf Marbled Velvet Gecko (Oedura bella) male emerging from a crevice in the sandstone massifs at dusk in the Boodjamulla National Park, Gulf of Carpentaria, Queensland, Australia.

Robert Valentic / Mereenie velvet gecko (Oedura luritja) female from the sandstone rock formations in the Watarrka National Park, central Australia, Northern Territork, Autumn.

John Waters / Common lizard (Lacerta vivipara) basking on rock. Mendip Hills Area AONB, Somerset, England, UK. May.

John Waters / Common lizard (Lacerta vivipara) basking on rock. Mendip Hills Area AONB, Somerset, England, UK. May.

Ross Hoddinott / Viviparous / Common lizard (Zootoca / Lacerta vivipara) basking on lichen covered stump, Devon, UK.