Suzi Eszterhas / Mountain gorilla (Gorilla gorilla beringei) silverback male with wound on head from fighting, portrait, Parc National des Volcans, Rwanda. Endangered.

Nick Garbutt / Lion (Panthera leo) male, resting in long grass, with large head wound - probably from fight with African buffalo (Synceros cafer), Ndutu area, Serengeti / Ngorongoro Conservation Area, Tanzania.

Nigel Cattlin / Recovering Fly strike wound on the hind quarters of a Friesian sheep, caused by feeding of Blow fly (Calliphoridae) maggots, Gloucestershire, UK. August.

Nigel Cattlin / Recovering Fly strike wound on the hind quarters of a Friesian sheep, caused by feeding of Blow fly (Calliphoridae) maggots, Gloucestershire, UK. August.

Richard Herrmann / Ocean Sunfish (Mola mola) juvenile with shark bite wound, Oceanside, California

Tony Wu / Male Blue whale (Balaenoptera musculus) killed by collision with container ship. Large wound in the caudal region most likely the result of a direct strike from a large commercial vessel traveling in...

Tony Wu / Male Blue whale (Balaenoptera musculus) killed by collision with container ship. Large wound in the caudal region most likely the result of a direct strike from a large commercial vessel traveling in...

Joel Sartore / Photo Ark / Florida panther (Puma concolor coryi) named Uno. A gunshot wound caused Uno to go blind in 2014, Naples Zoo, Florida, USA. Captive. This species is classified as federally endangered by the US Fish an...

Joel Sartore / Photo Ark / Florida panther (Puma concolor coryi) named Uno. A gunshot wound caused Uno to go blind in 2014, Naples Zoo, Florida, USA. Captive. This species is classified as federally endangered by the US Fish an...

Doug Perrine / Pantropical spotted dolphin (Stenella attenuata) with wound from Cookie cutter shark bite, infested with cyamid amphipods or whale lice, South Kona, Hawaii.

Doug Perrine / Short-finned pilot whale (Globicephala macrorhynchus) with deep crater wound from a recent bite from a cookie cutter shark ( Isistius brasiliensis) as well as a number of round scars from healed earli...

Doug Perrine / Hawaiian spinner dolphin (Stenella longirostris longirostris) with healing wound from cookie cutter shark bite, North Kona, Hawaii.

Doug Perrine / Humpback whale (Megaptera novaeangliae,) calf lifts head out of water, revealing cyamid amphipod parasites around mouth and on open wound from bite of cookie cutter shark, West Maui, Hawaii, Hawaii Hu...

David Fleetham / Stonefish (Synanceia verrucosa) camouflaged, This species is capable of inflicting a painful, heart stopping wound with it's venomous dorsal spines. Yap, Micronesia.

Nigel Cattlin / Common wintercress, bittercress or rocketcress (Barbarea vulgaris) yellow flowering plant, Berkshire, England, UK, April

Nigel Cattlin / Common wintercress, bittercress or rocketcress (Barbarea vulgaris) yellow flowering plant, Berkshire, England, UK, April