Nigel Cattlin / Glasshouse mealy bug (Pseudococcus viburni) honeydew from infestation on Lemon (Citrus limon) fruit, cultivated in conservatory.

Paul Bertner / Ant (Formicidae) group protecting caterpillars in return for sugary secretions, Tambopata Research Center, Peru

Philippe Clement / Common waasp (Vespula vulgaris) approaching a wasp trap on a balcony, the trap is filled with sugary drink and attracts and traps wasps until they drown in the liquid, Belgium, August.

Juergen Freund / Sugar glider (Petaurus breviceps) feeding on the sugary sap of Red stringybark. Atherton Tablelands, Queensland,Australia.

Nick Upton / Hoverfly (Platycheirus albimanus) feeding on sugary secretions from aphids on a leaf surface. Wiltshire garden, UK, May.

Nick Upton / Flesh fly (Sarcophaga carnaria) feeding on sugary excretions from aphids on a rose leaf, garden, Wiltshire, UK

Mark Moffett / Ant workers lured by sugary rewards along the margins of young Macaranga leaves, patrol and protect leaves from Beetles and other herbivores