Phil Savoie / European honey bee (Apis mellifera) worker at hive entrance emitting Nasonov pheromone from abdominal gland and fanning wings to spread the scent to returning workers, Monmouthshire, Wales, UK. Septem...

Milan Radisics / European beewolf (Philanthus triangulum) female grooming antennae. The antennae of these species has symbiotic bacteria living in the antennae gland. In females, these glands are involved in the prese...

Milan Radisics / European beewolf (Philanthus triangulum) grooming antennae. The antennae of these species has symbiotic bacteria living in the antennae gland. In females, these glands are involved in the preservation...

Jeff Foott / Lodgepole Pine (Pinus contorta) tree with pheromone packet to deter an attack from Mountain Pine Beetle (Dendroctonus ponderosae), Colorado

Andy Sands / Tanner beetle (Prionus coriarius) female on tree distributing pheromone to attract a male, Surrey, England, UK. August

Andy Sands / Tanner beetle (Prionus coriarius) female on tree distributing pheromone to attract a male, Surrey, England, UK. August

Thomas Marent / Atlas Moth (Attacus atlas) antennae of a male, Malaysia

Neil Aldridge / Vet working for the Endangered Wildlife Trust fastening a pheromone imbued calming collar around the neck of a tranquilized African wild dog (Lycaon pictus), these collars are designed to soothe dogs...

Neil Aldridge / Vet working for the Endangered Wildlife Trust placing a pheromone imbued calming collar around the neck of a tranquilized African wild dog (Lycaon pictus), these collars are designed to soothe dogs i...

Alex Hyde / Cockchafer Beetle (Melolontha melolontha) male antenna detail under scanning electron microscope. The surface is studded with sensory cells (yellow) with which it can detect the pheromone signals give...

Andy Sands / Comma butterfly (Polygonia c-album) at rest with wings closed on Hazel leaf showing comma shaped pheromone gland, Hertfordshire, UK, September

Christian Ziegler / King Spider Orchid (Caladenia pectinata) flower being visited by male parasitic wasp which is attracted to the flower by faux female wasp pheromone, western Australia

Christian Ziegler / King Spider Orchid (Caladenia pectinata) being visited by male parasitic wasp pollinator which is attracted to the flower by faux female wasp pheromone, Australia

Christian Ziegler / Zebra Orchid (Caladenia cairnsiana) flower being pollinated by male parasitic wasp which is attracted to the flower by faux female wasp pheromone, western Australia

Christian Ziegler / Ant (Crematogaster sp) group defending Macaranga (Macaranga sp) plant, but are fooled by caterpillar that is using fake ant pheromones, Lambir Hills National Park, Sarawak, Malaysia

Christian Ziegler / Ant (Crematogaster sp) group defending Macaranga (Macaranga sp) plant, but are fooled by caterpillar that is using fake ant pheromones, Lambir Hills National Park, Sarawak, Malaysia

Mark Brownlow / Bee man mimics queen Honey bee pheromone. Bees are attracted to protect him

Nick Upton / Professor Edward O. Wilson watching Fire ants (Solenopsis sp) following a pheromone trail in his laboratory, on production for a BBC Natural World film 'The Little Creatures Who Run the World'. Harvar...

Christian Ziegler / Warty Hammer Orchid (Drakaea livida) flower produces faux female parasitic wasp pheromone to attract male wasps, western Australia

Mark Brownlow / Bee man mimics queen Honey bee pheromone. Bees are attracted to protect him. {Apis mellifera}

Charlie Hamilton-James / Dead Brown rat (Rattus norvegicus) on weighing scales, research for a Rat pheromone project by Fordham University, Brooklyn New York City, USA.

Charlie Hamilton-James / Scientist with Brown rat (Rattus norvegicus) in glass tank working on a rat pheromone project, Brooklyn, New York City, USA. May, 2018.

Andy Sands / Winter moth (Operophtera brumata) female, the female has short stubby wings and is unable to fly, crawling up a tree trunk she excretes a pheromone to attract a mate. Hertfordshire, England, UK. Decem...

Andy Sands / Puss moth (Cerura vinula) female emiting pheromone to attract mate, Hertfordshire, England, UK, May - Captive - Focus Stacked

Nick Upton / Chemical / Pheromone trap set for Jewel beetles (Buprestidae), wood boring pests of Pine trees, Mondrago Natural Park, Santanyi, Majorca, May.