Jack Dykinga / Border wall with razor wire at the Mexican / United States border in Arizona, where the newer taller sections of the border wall pushed by President Trump are being erected in the environmentally sens...

Marie Read / Snowy Owl (Nyctea scandiaca) female perched, Amherst Island, Ontario, Canada, January.

Marie Read / Loggerhead shrike (Lanius ludovicianus) on an ice-covered fence after an ice storm, Anahuac National Wildlife Refuge, Texas, USA. January.

Terry Whittaker / Red fox (Vulpes vulpes) adult with train in background, Kent, UK. March. Highly commended in the Nature Photographer of the Year Awards 2018. Taken with remote camera.

Bence Mate / Red-legged honeycreeper (Cyanerpes cyaneus) two males on barbed wire. Costa Rica.

Juergen Freund / Tolga Bat Hospital director Jenny Maclean rescuing, Spectacled flying fox (Pteropus conspicillatus) caught in barbed wire fence. Atherton Tablelands, Queensland, Australia. April 2015. Second Place i...

Charlie Summers / Rocky mountain bighorn (Ovis canadensis) ram jumping a barbed wire fence, Montana, USA,

Jabruson / Angelique Todd with veterinarians during the anaesthesia of 'Blackback' Western Gorilla (Gorilla gorilla) 'Ngobo'. Gorilla anaesthetised by veterinary team in order to remove wire snare from wrist. Mo...

Shattil & Rozinski,Shattil & Rozinski / Black bear (Ursus americanus) cub climbing a fence, Minnesota, USA, May.

Tom Gilks / Basic electric wiring linking homes in a slum with a diesel powered generator, Remba Island, Lake Victoria, Kenya.

Theo Bosboom,Theo Bosboom / Arctic tern (Sterna paradisae) on telegraph lines, near a small village on the Reykjanes peninsula in the south west of Iceland, June

Orsolya Haarberg,Orsolya Haarberg / Stoat (Mustela erminea) feeding on fish hanging from wire. In white winter coat. Vauldalen, Sor-Trondelag, Norway. April