Tom Vezo / Wolf (Canis lupus) pup, Montana

Tom Vezo / Wolf (Canis lupus), North America

Tom Vezo / Mountain Lion (Puma concolor), Montana

Tom Vezo / Mountain Lion (Puma concolor), Montana

Tom Vezo / Bobcat (Lynx rufus), North America

Tom Vezo / Bobcat (Lynx rufus), North America

Ann & Steve Toon / Dehorned white rhino (Ceratotherium simum) with calf on rhino farm, Mauricedale game ranch, Mpumalanga, South Africa, June 2012

Ann & Steve Toon / Sign on game farm perimeter fence to deter rhino poachers explaning rhinos there have been dehorned, Hoedspruit, Limpopo, South Africa, June 2012. Editorial use only.

Chris Gomersall / 2020VISION / Adult male Grey partridge (Perdix perdix) in winter wheat crop, Hope Farm RSPB reserve, Cambridgeshire, England, UK, April

Chris Gomersall / 2020VISION / Adult male Grey partridge (Perdix perdix) in winter wheat crop, Hope Farm RSPB reserve, Cambridgeshire, England, UK, April

Chris Gomersall / 2020VISION / Adult male Grey partridge (Perdix perdix) in winter wheat crop, Hope Farm RSPB reserve, Cambridgeshire, England, UK, April

Matthias Breiter / Bobcat (Lynx rufus) descending rocks, Montana

Matthias Breiter / Mountain Lion (Puma concolor) jumping, Montana

Duncan Usher / Domestic Chicken (Gallus domesticus) hen with chicks, Texel, Netherlands

Duncan Usher / Domestic Chicken (Gallus domesticus) hen foraging with chicks, Texel, Netherlands

Duncan Usher / Domestic Chicken (Gallus domesticus) hen foraging with chicks, Texel, Netherlands

Duncan Usher / Domestic Chicken (Gallus domesticus) hen, Bavaria, Germany

Konrad Wothe / Grizzly Bear (Ursus arctos horribilis) playing, Montana

Silvia Reiche / Domestic Chicken (Gallus domesticus) hen with chicks foraging, Hoogeloon, Netherlands

Silvia Reiche / Domestic Chicken (Gallus domesticus) hen with chick, Hoogeloon, Netherlands

Silvia Reiche / Domestic Chicken (Gallus domesticus) hen with chicks, Hoogeloon, Netherlands

Silvia Reiche / Domestic Chicken (Gallus domesticus) chick, Hoogeloon, Netherlands

Silvia Reiche / Domestic Chicken (Gallus domesticus) hen with chicks, Hoogeloon, Netherlands

Rob Cousins / Helmeted Guinea Fowls (Numida meleagris) perched on a farm gate, Suffolk, UK

Michael Durham / Domestic Chicken (Gallus domesticus), banty morph, hatchling with egg shell

Michael Durham / Domestic Chicken (Gallus domesticus), banty morph, hatchling

Michael Durham / Domestic Chicken (Gallus domesticus) hatchling in egg shell

Michael Durham / Domestic Chicken (Gallus domesticus) hatchling with egg shell

Michael Durham / Domestic Chicken (Gallus domesticus) chicks showing genetic variation used to bring out traits that help poultry producers

Michael Durham / Domestic Chicken (Gallus domesticus), banty morph, about one week after hatching

Michael Durham / Domestic Chicken (Gallus domesticus), banty morph, about one week after hatching

Colin Monteath / Domestic Chicken (Gallus domesticus) free range organic farm, North Island, New Zealand

Colin Monteath / Domestic Chicken (Gallus domesticus) free range organic farm, North Island, New Zealand

Konrad Wothe / Canada Lynx (Lynx canadensis) in snow, North America

Konrad Wothe / Canada Lynx (Lynx canadensis) in snow, North America

Konrad Wothe / Golden Eagle (Aquila chrysaetos) perching on a branch, Game Farm, Colorado

Mitsuaki Iwago / Domestic Chicken (Gallus domesticus) hen, rooster and chicks, North America

Patricio Robles Gil / Aerial showing forest transformed into farmlands, Ndumu Game Reserve, South Africa

Konrad Wothe / Canada Lynx (Lynx canadensis) adult walking on snow in winter, North America

Chris Gomersall / Common pheasant (Phasianus colchicus) cock displaying on farm midden heap, Hertfordshire, UK

Mitsuaki Iwago / Domestic Chicken (Gallus domesticus) with group of chicks, North America

Mitsuaki Iwago / Domestic Chicken (Gallus domesticus) group in cages at commercial poultry farm, North America

Mitsuaki Iwago / Domestic Chicken (Gallus domesticus) male crowing, North America

Colin Monteath / Turkey (Meleagris sp) male gobbler on a commercial farm, west coast, South Island, New Zealand

Mitsuaki Iwago / Domestic Chicken (Gallus domesticus) male with extremely long tail feathers, Japan

Heidi & Hans-Juergen Koch / Domestic Chicken (Gallus domesticus) chick hatching from egg in nest, northern Germany

Heidi & Hans-Juergen Koch / Domestic Chicken (Gallus domesticus) chick hatching from egg in nest, northern Germany

Heidi & Hans-Juergen Koch / Domestic Chicken (Gallus domesticus) chick hatching from egg in nest, northern Germany

Heidi & Hans-Juergen Koch / Domestic Chicken (Gallus domesticus) chick hatching from egg in nest, northern Germany

Heidi & Hans-Juergen Koch / Domestic Chicken (Gallus domesticus) chick hatching from egg in nest, northern Germany

Heidi & Hans-Juergen Koch / Domestic Chicken (Gallus domesticus) rooster, northern Germany

Konrad Wothe / Timber Wolf (Canis lupus) chewing on antler, Colorado Game Farm

Konrad Wothe / Golden Eagle (Aquila chrysaetos) portrait, Colorado Game Farm, Colorado

Jim Brandenburg / Domestic Turkey (Meleagris gallopavo) group on a farm

Heidi & Hans-Juergen Koch / Domestic Chicken (Gallus domesticus) rooster crowing, northern Germany

Gerry Ellis / Domestic Chicken (Gallus domesticus) rooster, North America

Konrad Wothe / Domestic Chicken (Gallus domesticus) male, Pantanal, Brazil

David Kjaer / Grey partridge, newly hatched chick {Perdix perdix} Game Farm, Norfolk, UK

Tom Vezo / Wolf (Canis lupus), North America

Tom Vezo / North American River Otter (Lontra canadensis) standing on log, Montana

Tom Vezo / Mountain Lion (Puma concolor) in tree, Montana

Tom Vezo / Mountain Lion (Puma concolor) in grasses, Montana

Tom Vezo / Mountain Lion (Puma concolor) crossing river, Montana

Tom Vezo / Mountain Lion (Puma concolor) in tree, Montana

Tom Vezo / Coyote (Canis latrans) pup, Montana

Tom Vezo / Coyote (Canis latrans) pup, Montana

Matthias Breiter / Mountain Lion (Puma concolor) jumping, Montana. Sequence 2 of 2

Matthias Breiter / Mountain Lion (Puma concolor) jumping, Montana. Sequence 1 of 2

Matthias Breiter / Bobcat (Lynx rufus) running up slope, Montana

Konrad Wothe / Bald Eagle (Haliaeetus leucocephalus) landing on rock, Game Farm, Colorado

Matthias Breiter / Kodiak Bear (Ursus arctos middendorffi) with mouth agape, native to Kodiak Island, Alaska

Heidi & Hans-Juergen Koch / Domestic Chicken (Gallus domesticus) rooster, northern Germany

Heidi & Hans-Juergen Koch / Domestic Chicken (Gallus domesticus) rooster, northern Germany

Heidi & Hans-Juergen Koch / Domestic Chicken (Gallus domesticus) hen hiding behind vegetation, northern Germany

Heidi & Hans-Juergen Koch / Domestic Chicken (Gallus domesticus) hen, northern Germany

Norbert Wu / Domestic Chicken (Gallus domesticus) rooster