David Gallan / Spotted-tailed quoll (Dasyurus maculatus) scent marking in Monga National Park, New South Wales, Australia. Remote camera, triggered by movement. Highly Commended 2018 Wildlife Photographer Of The Yea...

John & Mary-Lou Aitchison / Female European otter (Lutra lutra) on a rock grooming her cub before rolling over and scent marking, Scotland, UK, November.

Vladimir Medvedev / Camera trap image of wild female Siberian tiger (Panthera tigris altaica) scent marking the trunk of a Cedar (Cedrus) tree, Lazovsky Zapovednik Nature Reserve, Primorsky Krai, Far East Russia, April...

Anup Shah / Ring-tailed Lemur (Lemur catta) male scent marking. Berenty Private Reserve, Madagascar. Oct 2008.

Anup Shah / Ring-tailed Lemur (Lemur catta) female carrying baby and scent marking. Berenty Private Reserve, Madagascar. Oct 2008.

Wild Wonders of Europe / E Haarberg / Chamois (Rupicapra rupicapra) male marking his territory in rutting season, Gran Paradiso National Park, Italy, November 2008

Chase Dekker / Cheetah (Acinonyx jubatus) female scent-marking, Masai Mara, Kenya

Ann & Steve Toon / Cheetah (Acinonyx jubatus) spraying / scentmarking tree, Zimanga private game reserve, Kwaqulu-Natal, South Africa.

Sandesh Kadur / Snow leopard (Unica unica) scent marking against boulder in rocky landscape in Himalayas. Ule, Ladakh, India. March 2018. Sequence 2/2.

Sandesh Kadur / Snow leopard (Unica unica) standing beside boulder in rocky landscape of Himalayas, prior to scent marking. Ule, Ladakh, India. March 2018. Sequence 1/2.

Sandesh Kadur / Snow leopard (Unica unica) standing against boulder, scent marking, at night. Camera trap image. Ule, Ladakh, India.

Mark Raycroft / White-tailed Deer (Odocoileus virginianus) buck scent-marking, North America