Kristel Richard / Two cowboys mounted on a Pantaneiro stallion, round up a band of wild Pantaneiro horses, Pantanal, Mato Grosso do Sul, Brazil. August 2015.

Eric Medard / Pair of Tufted ducks (Athya fuligula) on lake, male with an identification beak band, Mayenne, France, March.

Konrad Wothe / Two male Band-tailed manakins (Pipra fasciicauda saturata) displaying, taking off from and landing on a branch, Panguana Reserve, Huanuco Province, Peru.

Konrad Wothe / Juvenile male Band-tailed manakin (Pipra fasciicauda saturata) displaying, before being chased off by an adult, Panguana Reserve, Huanuco Province, Peru.

Carol Walker / Two wild Mustang stallions, a sorrel bachelor and a grey band face off in the Adobe Town Herd Area, Wyoming, USA. June 2013.

Cyril Ruoso / Band-tailed gull (Larus belcheri) pair mating on beach, Punta San Juan, Peru

Cyril Ruoso / Band-tailed gull (Larus belcheri) pair mating on beach, Punta San Juan, Peru

Kristel Richard / Two cowboys mounted on Pantaneiro stallion, round up a band of wild Pantaneiro horses in water, Pantanal, Mato Grosso do Sul, Brazil. August 2015.

Kristel Richard / Two cowboys mounted on a Pantaneiro stallion, rounds up a band of wild Pantaneiro horses, Pantanal, Mato Grosso do Sul, Brazil.

Cyril Ruoso / Band-tailed gulls (Larus belcheri) two standing on a rock, Punta Coles reserve, Peru.

Konrad Wothe / Band-tailed manakins (Pipra fasciicauda) male displaying to female, Panguana Reserve, Huanuca province, Amazon basin, Peru.

Konrad Wothe / Band-tailed manakins (Pipra fasciicauda) males, Panguana Reserve, Huanuca province, Amazon basin, Peru.

Pascal Kobeh / Coral drop off with hard corals (Porites) and jewel fairy basslets (Pseudanthias squamipinnis) and two-band anemonefish (Amphiprion bicinctus) in a Mertens' sea anemone (Stichodactyla mertensii) Sudan...

Alex Mustard / Portrait of two band anemonefish (Amphiprion bicinctus), endemic to the Red Sea. Sharm El Sheikh, Sinai, Egypt. Gulf of Aqaba, Red Sea.

Cyril Ruoso / Griffon Vulture (Gyps fulvus) researchers scale cliff to band juvenile, Tarn Gorge, Cevennes National Park, Grands Causses, France

Kristel Richard / Two cowboys driving a band of semi-feral Quarter mares and foals across a creek, Estancia Don Amerigo, Chaco, Paraguay, January 2012

Jeff Rotman / Symbiotic Two-band clownfish / Two bar anemonefish (Amphiprion bicinctus) hiding in the protection of the tentacles of a Magnificent Sea Anemone (Heteractis magnifica) Red Sea, Egypt

Jeff Rotman / Symbiotic Two-bar clownfish / Two-band anemonefish (Amphiprion bicinctus) hiding in the protection of a Sea anemone's tentacles. Red Sea, Egypt

Jeff Rotman / Symbiotic Two-bar clownfish / Two-band anemonefish (Amphiprion bicinctus) hiding in the protection of a Sea anemone's tentacles. Red Sea, Egypt

Kristel Richard / Konik horses (Equus caballus) - wild Konik breeding stallion biting one of his mares to bring her back in his band,Millingerwaard nature reserve, Netherlands, April

Kristel Richard / Two wild Misaki-uma breeding stallions (Equus ferus caballus) in a territorial confrontation. Defending male (centre) stands between band of females and challenging male. Cape Toi Reserve, Miyazaki Pr...

Carol Walker / Wild Horses / Mustangs, pinto band stallion chases black and white pinto bachelor stallion, McCullough Peaks Herd Area, Cody, Wyoming, USA

Carol Walker / Mustang / Wild horse stallion driving filly back to his band, Montana, USA. Pryor

Carol Walker / Mustang / wild horse stallion driving filly back to his band, Montana, USA. Pryor

Carol Walker / Mustang / Wild horse filly touching nose of mare from another band, Montana, USA.

Gabriel Rojo / Band-tailed gull + chicks {Larus belcheri} Argentina

Gabriel Rojo / Band-tailed gull + chicks {Larus belcheri} Argentina

Gary Bell/ Oceanwide / Dusky Anemonefish (Amphiprion latezonatus) with eggs in sea anemone, Solitary Islands Marine Park, New South Wales, Australia

Pete Oxford / Picazuro Pigeon (Patagioenas picazuro) pair, Pantanal, Mato Grosso, Brazil

Carol Walker / Two wild stallions standing nose to nose, the older pinto on the left is the band stallion, McCullough peaks, Wyoming, USA. July.

David Fleetham / Two juvenile Orangeband surgeonfish (Acanthurus olivaceus) swimming over seabed, Hawaii, Pacific Ocean.

Alex Mustard / Red Sea anemonefish / Two band anemonefish (Amphiprion bicinctus) in an anemone, Gubal Island, Egypt, Red Sea.

David Fleetham / Orangeband surgeonfish (Acanthurus olivaceus) with brightened color to expose any parasites to a nearby Cleaner wrasse in hopes of attracting its attention, Hawaii, Pacific Ocean.