Kristel Richard / A wild Misaki-uma breeding stallion (right) brings back one of his mares to his band while another breeding stallion (left) charges him away, in the Cape Toi Reserve, Miyazaki Prefecture, Kyushu Islan...

Kristel Richard / A Sika deer stag rests among a band of wild Misaki-uma horses (Equus ferus caballus) in the Cape Toi Reserve, Miyazaki Prefecture, Kyushu Island, Japan.

Roland Seitre / Gobi Jerboa (Allactaga bullata) hopping. Mongolia.

Marie Read / Purple finch (Carpodacus purpureus) male perched in flowering Eastern redbud tree, New York, USA, May

Charlie Summers / Mustang (Equus caballus) stallion rolling in a waterhole at the foot of a snowbank. Pryor Mountain Range, Montana, USA

Charlie Summers / Two Mustang (Equus caballus) Stallions stand rear to rear and kicking each other, Mountain Range, Montana, USA

Charlie Summers / Mustang (Equus ferus caballus) portrait standing in grassland at dusk, IRAM Wild Horse Sanctuary in South Dakota, USA, September

Charlie Summers / Wild Horses (Equus ferus caballus) dominance fight in high mountain meadow. Pryor Mountains of Montana, USA

Kristel Richard / A wild Misaki-uma breeding stallion bites away a bachelor stallion, in the Cape Toi Reserve, Miyazaki Prefecture, Kyushu Island, Japan.

Kristel Richard / A wild Misaki-uma breeding stallion (Equus ferus caballus) bites away a bachelor stallion, in the Cape Toi Reserve, Miyazaki Prefecture, Kyushu Island, Japan.

Kristel Richard / A wild Misaki-uma breeding stallion (Equus ferus caballus) herds his mares away, Cape Toi Reserve, Miyazaki Prefecture, Kyushu Island, Japan.

Kristel Richard / A wild Misaki-uma breeding stallion (Equus ferus caballus) watches another stallion's mares while keeping his mares behind him, in the Cape Toi Reserve, Miyazaki Prefecture, Kyushu Island, Japan.

Kristel Richard / A wild Misaki-uma breeding stallion (Equus ferus caballus) bites one of his young mares who was wandering too far away from the band, in the Cape Toi Reserve, Miyazaki Prefecture, Kyushu Island, Japa...

Kristel Richard / Rear view of a wild Misaki-uma breeding stallion (Equus ferus caballus) in the Cape Toi Reserve, Miyazaki Prefecture, Kyushu Island, Japan.

Kristel Richard / Portrait of a wild Misaki-uma filly (Equus ferus caballus) eating flowers, Cape Toi Reserve, Miyazaki Prefecture, Kyushu Island, Japan.

Kristel Richard / A wild Misaki-uma breeding stallion (Equus ferus caballus) charges away a young bachelor stallion, Cape Toi Reserve, Miyazaki Prefecture, Kyushu Island, Japan.

Kristel Richard / A wild Misaki-uma breeding stallion (Equus ferus caballus) walks downhill, Cape Toi Reserve, Miyazaki Prefecture, Kyushu Island, Japan.

Kristel Richard / Head portrait of a wild Misaki-uma breeding stallion (Equus ferus caballus) Cape Toi Reserve, Miyazaki Prefecture, Kyushu Island, Japan.

Kristel Richard / A wild Misaki-uma breeding stallion (Equus ferus caballus) walking in grassland, in the Cape Toi Reserve, Miyazaki Prefecture, Kyushu Island, Japan.

Kristel Richard / Portrait of a wild Misaki-uma breeding stallion (Equus ferus caballus) in the Cape Toi Reserve, Miyazaki Prefecture, Kyushu Island, Japan.

Kristel Richard / Head portrait of two wild Misaki-uma (Equus ferus caballus) bachelor stallions, in the Cape Toi Reserve, Miyazaki Prefecture, Kyushu Island, Japan.

Kristel Richard / A wild Misaki-uma colt (Equus ferus caballus) walks in grassland, in the Cape Toi Reserve, Miyazaki Prefecture, Kyushu Island, Japan.

Kristel Richard / A wild Misaki-uma breeding stallion (centre) brings back a mare to his band while another breeding stallion (left) charges him away, in the Cape Toi Reserve, Miyazaki Prefecture, Kyushu Island, Japan.

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...

Kristel Richard / A wild Misaki-uma filly (Equus ferus caballus) silhouetted grazing over the Shibushi Bay, Cape Toi Reserve, Miyazaki Prefecture, Kyushu Island, Japan.

Kristel Richard / Head portrait of a wild Misaki-uma breeding stallion (Equus ferus caballus) in the Cape Toi Reserve, Miyazaki Prefecture, Kyushu Island, Japan.

Kristel Richard / Portrait of two wild Misaki-uma mares (Equus ferus caballus) drinking in the Cape Toi Reserve, Miyazaki Prefecture, Kyushu Island, Japan.

Kristel Richard / Head portrait of a wild Misaki-uma colt (Equus ferus caballus) in the Cape Toi Reserve, Miyazaki Prefecture, Kyushu Island, Japan

Kristel Richard / A wild Misaki-uma stallion (Equus ferus caballus)smells a dung pile, in the Cape Toi Reserve, Miyazaki Prefecture, Kyushu Island, Japan.

Kristel Richard / Head portrait of a wild Misaki-uma stallion (Equus ferus caballus) in the Cape Toi Reserve, Miyazaki Prefecture, Kyushu Island, Japan.

Kristel Richard / A wild Misaki-uma colt foal (Equus ferus caballus) standing in grasslansd, Cape Toi Reserve, Miyazaki Prefecture, Kyushu Island, Japan.

Kristel Richard / Head portrait of a wild Misaki-uma colt foal (Equus ferus caballus) in the Cape Toi Reserve, Miyazaki Prefecture, Kyushu Island, Japan.

Kristel Richard / A wild Misaki-uma foal (Equus ferus caballus) suckling his mother in the Cape Toi Reserve, Miyazaki Prefecture, Kyushu Island, Japan.

Kristel Richard / Portrait of a wild Misaki-uma colt foal (Equus ferus caballus) Cape Toi Reserve, Miyazaki Prefecture, Kyushu Island, Japan.

Kristel Richard / A Sika deer stag rests among a band of Misaki-uma horses (Equus ferus caballus) in the Cape Toi Reserve, Miyazaki Prefecture, Kyushu Island, Japan.

Kristel Richard / Two wild Misaki-uma mares (Equus ferus caballus)grooming each other in the Cape Toi Reserve, Miyazaki Prefecture, Kyushu Island, Japan.

Kristel Richard / Two wild Misaki-uma (Equus ferus caballus) mares grazing at the entrance of the Cape Toi Reserve, Miyazaki Prefecture, Kyushu Island, Japan

David Kjaer / Male Purple finch (Carpodacus purpureus) perched on branch, Kentucky, USA

David Kjaer / Male Purple finch (Carpodacus purpureus) perched on branch, Kentucky, USA