Christian Ziegler / Fringe-lipped Bat (Trachops cirrhosus) roosting and calling, Smithsonian Tropical Research Station, Barro Colorado Island, Panama

Staffan Widstrand / Girl with bindi and nose piercing, Tongal village, Pulicat Lake, Tamil Nadu, India, January 2013.

Nick Upton / Welsh cob and two American miniature horses (Equus caballus) reaching through a wooden fence to eat hay, Wiltshire, UK, October.

Alastair MacEwen / Mustang studs {Equus caballus} mutual grooming, USA

Yva Momatiuk & John Eastcott / Mustang (Equus caballus) studs posturing during breeding season, Montana

Yva Momatiuk & John Eastcott / Mustang (Equus caballus) bachelor stallions waiting their turn at water hole while dominant studs drink, Wyoming

Yva Momatiuk & John Eastcott / Spanish Mustang (Equus caballus) young bachelor studs interact and graze together, northern Wyoming