Steven David Miller / A Perentie (Varanus giganteus) using its forked tongue to detect smells, Alice Springs Reptile Centre, Northern Territory, Australia, Captive. May.

Michael Hutchinson / Titan arum (Amorphophallus titanum), in flower, cultivated specimen in botanic garden, native to Sumatra. Kew Gardens, London, UK. 23 April 2016 This species has the largest unbranched flower inflores...

Michael Hutchinson / Titan arum (Amorphophallus titanum), in flower, cultivated specimen in botanic garden, native to Sumatra. Kew Gardens, London, UK. 23 April 2016 This species has the largest unbranched flower inflores...

Denis-Huot,Denis-Huot / Lion (Panthera leo) male using 'flehmen response' to smell, Masai-Mara Game Reserve, Kenya. Vulnerable species.

Neil Lucas / Titan arum (Amorphophallus titanum) Summatra. This species has the largest unbranched flower inflorescence which smells strongly of rotting carrion.

John Downer Productions / Spotted skunk does handstand as initial warning then sprays out stench if warning not heeded (Resolution restriction - image digitised from film, 'Weird Nature' tv series)

Heather Angel / Brazilian Dutchman's pipe flower (Aristolochia gigantea) with green inflated pouch. Flower smells of carrion to attract fly pollinators. Cultivated in glasshouse, Surrey, England, UK. Native to Br...

Heather Angel / Brazilian Dutchman's pipe flower (Aristolochia gigantea) with green inflated pouch. Flower smells of carrion to attract fly pollinators. Cultivated in glasshouse, Surrey, England, UK. Native to Br...

Nick Upton / Hebridean sheep (Ovis aries) ram showing flehmen response as it smells nearby ewe in meadow, Rutland Water, Rutland, UK, November.

Jen Guyton / African rock python (Python sebae) smells the camera, Gorongosa National Park, Mozambique.

Michael Hutchinson / Titan arum (Amorphophallus titanum), in flower, cultivated specimen in botanic garden, native to Sumatra. Kew Gardens, London, UK. 23 April 2016 This species has the largest unbranched flower inflores...

Michael Hutchinson / Titan arum (Amorphophallus titanum), in flower. Cultivated specimen in botanic garden, native to Sumatra. Kew Gardens, London, UK. 23 April 2016 This species has the largest unbranched flower inflores...

Michael Hutchinson / Titan arum (Amorphophallus titanum), in flower. Cultivated specimen in botanic garden, native to Sumatra. Kew Gardens, London, UK. 23 April 2016 This species has the largest unbranched flower inflores...

Michael Hutchinson / Visitor taking photograph of Titan arum (Amorphophallus titanum), in flower, cultivated specimen in botanic garden, native to Sumatra. Kew Gardens, London, UK. 23 April 2016 This species has the large...

Michael Hutchinson / Spadix of Titan arum (Amorphophallus titanum), in flower, cultivated specimen in botanic garden, native to Sumatra. Kew Gardens, London, UK. 23 April 2016 This species has the largest unbranched flowe...

Michael Hutchinson / Titan arum (Amorphophallus titanum), in flower, cultivated specimen in botanic garden, native to Sumatra. Kew Gardens, London, UK. 23 April 2016 This species has the largest unbranched flower inflores...

Michael Hutchinson / Visitors to Kew Gardens looking at Titan arum (Amorphophallus titanum), in flower, cultivated specimen in botanic garden, native to Sumatra. Kew Gardens, London, UK. 23 April 2016 This species has the...

Michael Hutchinson / Visitors to Kew Gardens looking at Titan arum (Amorphophallus titanum), in flower, cultivated specimen in botanic garden, native to Sumatra. Kew Gardens, London, UK. 23 April 2016 This species has the...

Michael Hutchinson / Visitors to Kew Gardens looking at Titan arum (Amorphophallus titanum), in flower, cultivated specimen in botanic garden, native to Sumatra. Kew Gardens, London, UK. 23 April 2016 This species has the...

Michael Hutchinson / Titan arum (Amorphophallus titanum), in flower, cultivated specimen in botanic garden, native to Sumatra. Kew Gardens, London, UK. 23 April 2016 This species has the largest unbranched flower inflores...

Michael Hutchinson / Titan arum (Amorphophallus titanum), in flower, close up of spathe. Cultivated specimen in botanic garden, native to Sumatra. Kew Gardens, London, UK. 23 April 2016 This species has the largest unbran...

Michael Hutchinson / Visitors to Kew Gardens looking at Titan arum (Amorphophallus titanum), in flower, cultivated specimen in botanic garden, native to Sumatra. Kew Gardens, London, UK. 23 April 2016 This species has the...

Michael Hutchinson / Visitors to Kew Gardens looking at Titan arum (Amorphophallus titanum), in flower, cultivated specimen in botanic garden, native to Sumatra. Kew Gardens, London, UK. 23 April 2016 This species has the...

Michael Hutchinson / Visitors to Kew Gardens looking at Titan arum (Amorphophallus titanum), in flower, cultivated specimen in botanic garden, native to Sumatra. Kew Gardens, London, UK. 23 April 2016 This species has the...

Michael Hutchinson / Visitors to Kew Gardens looking at Titan arum (Amorphophallus titanum), in flower, cultivated specimen in botanic garden, native to Sumatra. Kew Gardens, London, UK. 23 April 2016 This species has the...

Michael Hutchinson / Titan arum (Amorphophallus titanum), in flower. Cultivated specimen in botanic garden, native to Sumatra. Kew Gardens, London, UK. 23 April 2016 This species has the largest unbranched flower inflores...

Michael Hutchinson / Visitors to Kew Gardens looking at Titan arum (Amorphophallus titanum), in flower, cultivated specimen in botanic garden, native to Sumatra. Kew Gardens, London, UK. 23 April 2016 This species has the...

Michael Hutchinson / Spathe of Titan arum (Amorphophallus titanum), in flower, cultivated specimen in botanic garden, native to Sumatra. Kew Gardens, London, UK. 23 April 2016 This species has the largest unbranched flowe...

Michael Hutchinson / Visitors to Kew Gardens looking at Titan arum (Amorphophallus titanum), in flower, cultivated specimen in botanic garden, native to Sumatra. Kew Gardens, London, UK. 23 April 2016 This species has the...

Michael Hutchinson / Visitors to Kew Gardens looking at Titan arum (Amorphophallus titanum), in flower, cultivated specimen in botanic garden, native to Sumatra. Kew Gardens, London, UK. 23 April 2016 This species has the...

Michael Hutchinson / Titan arum (Amorphophallus titanum) flower, cultivated specimen in botanic garden, native to Sumatra. Kew Gardens, London, UK. 23 April 2016 This species has the largest unbranched flower inflorescenc...

Michael Hutchinson / Visitors to Kew Gardens looking at Titan arum (Amorphophallus titanum), in flower, cultivated specimen in botanic garden, native to Sumatra. Kew Gardens, London, UK. 23 April 2016 This species has the...

Michael Hutchinson / Visitors to Kew Gardens looking at Titan arum (Amorphophallus titanum), in flower, cultivated specimen in botanic garden, native to Sumatra. Kew Gardens, London, UK. 23 April 2016 This species has the...

Ammonite / Baird's tapir (Tapirus bairdii) smelling the air, footage taken at night using starlight camera technology, Santa Rosa National Park, Costa Rica.

Ammonite / Baird's tapir (Tapirus bairdii) smelling the air, footage taken at night using thermal camera technology, Santa Rosa National Park, Costa Rica.

Ammonite / Female African elephant (Loxodonta africana) smelling the air with her trunk, accompanied by her calf, footage taken at night using thermal camera technology, showing cooling thermoregulatory properti...

Felicity Lanchester / Juvenile African forest elephant (Loxodonta africana cyclotis) smelling the air, Dzanga Bai, Dzanga-Ndoki National Park, Central African Republic

Anup Shah / Spotted hyena (Crocuta crocuta) scent marking while another smells. Masai Mara National Reserve, Kenya, July

Paul Harcourt Davies / Dragon Arum (Dracunculus vulgaris) which smells of rotting flesh / carrion to attract flies for pollination, Chania, Crete, April

Paul Harcourt Davies / Basket Stinkhorn (Clathrus ruber) a fungus of which resembles and smells of rotten flesh attarcting flies in large numbers to disperse spores, near Castel Giorgio, Orvieto, Umbria, Italy, September

Paul Harcourt Davies / Basket Stinkhorn (Clathrus ruber) a fungus which resembles and smells like rotten flesh attracting flies as spore dispersers, near Castel Giorgio, Orvieto, Umbria, Italy, September

Denis-Huot / Lion (Panthera leo) male smelling, 'flehmen response', Masai-Mara Game Reserve, Kenya. Vulnerable species.

Juergen Freund / Titan Arum (Amorphophallus titanum) in flower at the Cairns Botanical Gardens, Queensland, Australia This species has the largest unbranched flower inflorescence which smells strongly of rotting carri...

Bruno D'Amicis / Tatra Chamois (Rupicapra rupicapra tatrica) male smells a urinating female to assess her oestrus status. Endangered species. Belianske Tatras, Slovakia, November.

Heike Odermatt / Common Stinkhorn (Phallus impudicus) relasing smells to attract flies, Oirschot, Noord-Brabant, Netherlands

Heike Odermatt / Common Stinkhorn (Phallus impudicus) relasing smells to attract flies, Oirschot, Noord-Brabant, Netherlands

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

Yva Momatiuk & John Eastcott / Alaska Moose (Alces alces gigas) bull urinates and cow smells urine and shows interest during breeding season, Chugach State Park, Alaska

Yva Momatiuk & John Eastcott / Alaska Moose (Alces alces gigas) bull urinates and cow smells urine and shows interest during breeding season, Chugach State Park, Alaska

Andrew Parkinson / European river otter (Lutra lutra) adult investigating smells left along a rocky coastline, Isle of Mull, Scotland, UK

Mark Raycroft / White-tailed Deer (Odocoileus virginianus) buck lip curling as he smells for females who may be in estrus

Neil Lucas / Titan arum in flower (Amorphophallus titanum) Sumatra, Indonesia. This species has the largest unbranched flower inflorescence which smells strongly of rotting carrion.

Jane Burton / Domestic Cat {Felis catus} Red burmese male 'Ozymandias' luxuriating in the scent of catmint / catnip

Adrian Davies / Titan arum plant about to flower {Amorphophallus titanum} Kew Gardens, UK. This species has the largest unbranched flower inflorescence which smells strongly of rotting carrion.

GEORGETTE DOUWMA / Rafflesia flower {Rafflesia keithii} Sabah, Borneo - on fourth day of flowering smells of rotting flesh

Adrian Davies / Titan arum flower {Amorphophallus titanum} Kew Gardens London UK This species has the largest unbranched flower inflorescence which smells strongly of rotting carrion.

Sergey Gorshkov / Brown bear (Ursus arctos) foraging in forest beside rock. Another bear enters frame and smells tree before beginning to forage, Land of the Leopard National Park, Russian Far East. Taken with trail ca...

Nigel Cattlin / An English setter rescue dog taking in the smells and scents of a snowy winter morning for the first time, Berkshire, UK, January.

Doug Gimesy / Wildlife carer taking two rescued Swamp wallaby (Wallabia bicolor) joeys aged 8-9 months for foliage walk to collect fodder and introduce them to native plant smells. One joey orphaned by road traffic...