Flip Nicklin / Bottlenose Dolphin (Tursiops truncatus) trio surfacing, Shark Bay, Australia

Jeff Rotman / Man and woman with Cannabis plant in organic Marijuana farm, Pueblo, Colorado, USA, June 2015. . Marijuana has legalized in the state of Colorado, and this farm produces Marijuana for medical and reta...

Jeff Rotman / Person holding large Cannabis bud, in organic Marijuana farm, Pueblo, Colorado, USA, June 2015. . Marijuana has legalized in the state of Colorado, and this farm produces Marijuana for medical and ret...

Juergen Freund / Spectacled flying fox (Pteropus conspicillatus) casualty of paralytic tick (Ixodes holocyclus) bite being cared for on site of colony by Jenny Mclean, North Queensland, Australia, November 2012

Jeff Rotman / Irula Snake Tribe member holding vials of snake anti-venom for Viper, Krait and Cobra bites. Southern India.

Petra Wegner / British Shorthair Cat, kitten, golden-ticked-tabby, being administered ophthalmic ointment by a woman. Model released

Jose B. Ruiz / Medicinal plants for sale at market, Granada, Spain

Tony Phelps / Extracting venom from Puff adder {Bitis arietans} at Liverpool school of tropical medicine, UK

Paul Johnson / Saiga antelope male {Saiga tatarica} native to Kazakhstan steppe, Russia. Winter. Endangered species - hunted almost to extinction for its horn, used in chinese medecine.

Suzi Eszterhas / Wildlife Rehabilitator, Jessie Paolello, administering eye medication to orphaned pup Coyote (Canis latrans) Sarvey Wildlife Care Center, Arlington, Washington, USA, June.

David Perpinan / Vaccination of a male Brown bear (Ursus arctos) anaesthetised in Slovenia for a reintroduction project in the Pyrenees, Jelen Reserve, Slovenia, June, 2016.

David Fleetham / Glass cases full of dried seahorese for sale at a medicine shop in Guangzhou, China. July 2010.

Suzi Eszterhas / Koala (Phascolarctos cinereus), male sick with chlamydia on scale while under anaesthetic. Currumbin Wildlife Hospital, Queensland, Australia, captive.