Ben Lascelles / Tibetan gazelle / goa (Procapra picticaudata) one urinating on ground, near Threatened and endemic to the Tibetan plateau, near Tsada, Tibet

Ben Lascelles / Tibetan gazelle / goa (Procapra picticaudata) feeding on grass, near Threatened and endemic to the Tibetan plateau, near Tsada, Tibet

XI ZHINONG / Tibetan gazelle (Procapra picticaudata) on mountainside, Kekexili, Qinghai, Tibetan plateau, China, January

Philippe Clement / The Passage du Gois / Gôa, a tidal causeway from Beauvoir-sur-Mer to the Île de Noirmoutier, La Vendée, Pays de la Loire, France

John Downer / Rousettus fruit bats {Rousettus celebensis} roosting at Goa Lawah bat cave temple, Bali, Indonesia.

Dave Watts / Emu (Dromaius novaehollandiae) chick, Victoria, Australia, October.

Dave Watts / Emu (Dromaius novaehollandiae) male with chicks, Victoria, Australia

Dave Watts / Emu (Dromaius novaehollandiae) male with chicks, Victoria, Australia

Dave Watts / Emu (Dromaius novaehollandiae) feeding, Tower Hill, Victoria, Australia.

Dave Watts / Two Emus (Dromaius novaehollandiae) feeding, Tower Hill, Victoria, Australia.

Dave Watts / Male Emu (Dromaius novaehollandiae) feeding, with two chicks, Tower Hill, Victoria, Australia.

Dave Watts / Male Emu (Dromaius novaehollandiae) feeding, with two chicks, Tower Hill, Victoria, Australia.

Dave Watts / Male Emu (Dromaius novaehollandiae) feeding, with two chicks, Tower Hill, Victoria, Australia.

Dave Watts / Male Emu (Dromaius novaehollandiae) with four chicks, Tower Hill, Victoria, Australia.

Dave Watts / Male Emu (Dromaius novaehollandiae) feeding, with four chicks, Tower Hill, Victoria, Australia.

Jiri Lochman / Emu (Dromaius novaehollandiae) eggs in nest, Willandra Lakes UNESCO Natural World Heritage Site, New South Wales, Australia.

Roger Powell / Common emu (Dromaius novaehollandiae) walking through a holiday village. Hall's Gap, Victoria, Australia.