Wim van den Heever / Lion (Panthera leo) male with scars photographed with side-lit spot light at night. Greater Kruger National Park, South Africa, April.

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

Eric Baccega / Young man from the Bodi Tribe having new scars made on his chest with razor blade, to make decorative skin scarifications. Omo Valley, Ethiopia, March 2015.

Eric Baccega / Toposa tribe man with elaborate facial skin scarifications, Omo Valley, Ethiopia, March 2015.

Eric Baccega / Men from the Mursi tribe decoratively scaring skin, one man scars the arm of another one by lifting the skin with an acacia spine and cutting it with a razor blade, Ethiopia, March 2015.

Enrique Lopez-Tapia / Woman with stick at the Jumping of the bulls Hamer ceremony. This Hamer ceremony, is a right of passage into manhood for Hamer boys. During the ceremony young female relatives of the boys beg to be wh...

Laurent Geslin / Young Benna woman looking after cattle and showing the scars on her back, these are inflicted on teenage girls by their brothers and are considered a mark of beauty and bravery, the girls provoke thei...

Laurent Geslin / Young Benna woman looking after cattle and showing the scars on her back, these are inflicted on teenage girls by their brothers and are considered a mark of beauty and bravery, the girls provoke thei...

Alex Mustard / 2020VISION / Pair of Common cuttlefish (Sepia officinalis), female in foreground and male behind, note circular mating scars on female caused by the males suckers, Babbacombe Bay, Torbay, Devon, UK, May. Did you k...

Alex Mustard / Male Great white shark (Carcharodon carcharias) showing scars from hunting, Guadalupe Island, Mexico, Pacific Ocean.

Doug Perrine / Salmon shark (Lamna ditropis) female with mating scars and copepod parasites trailing from fins, Port Fidalgo, Prince William Sound, Alaska, USA. Digital composite

DOC WHITE / Pygmy Killer Whales (Feresa attenuata) with scarring / markings on skin, Pacific