Mark Payne-Gill / Three banded armadillo {Tolypeutes tricinctus} walking Captive, UK

Mark Payne-Gill / Three banded armadillo {Tolypeutes tricinctus} uncurling from defensive ball

Francois Savigny / Close up of Leopard skin {Panthera pardus} Kalahari National Park, Botswana

Ingo Arndt / Saturniid moth caterpillar close up of spines {Syssphinx mexicana} Costa Rica

Ingo Arndt / Ornate box turtle retracted into shell {Terrapene ornata} USA

Ingo Arndt / Giant tortoise {Geochelone elephantopus} Galapagos

Ingo Arndt / Natterjack toad {Bufo calamita} portrait Germany

Eric Baccega / Young woman from the Bodi tribe displaying elaborate scarification on the skin of her back, Omo Valley, Ethiopia, March 2015.

Enrique Lopez-Tapia / Karo boys with decorative skin painting. Karo tribe, Omo river, Ethiopia, November 2014

Enrique Lopez-Tapia / Karo boy with decorative skin painting. Karo tribe, Omo river, Ethiopia, November 2014

Enrique Lopez-Tapia / Karo boys with decorative skin painting, close up portrait, Karo tribe, Omo river, Ethiopia, November 2014

Jeff Rotman / Close-up of skin of a Hieroglyphic hawkfish (Cirrhitus rivulatus). Cocos Island, Costa Rica, Pacific Ocean.