Michael & Patricia Fogden / Bee (Eulaema sp) feeding on nectar of Porterweed (Stachytarpheta sp) flower in cloud forest, Tandayapa Valley, western slope of Andes, Ecuador

Michael & Patricia Fogden / Ruby-throated Hummingbird (Archilochus colubris) immature male feeding on nectar of Porterweed (Stachytarpheta frantzii) flower in dry forest, northwestern Costa Rica

Pascal Tordeux / Verbena (Verbena officinalis). Picardy, France, July.

Michael & Patricia Fogden / Green Thorntail (Discosura conversii) hummingbird female feeding at and pollinating Porterweed (Stachytarpheta sp) flowers, Sarapiqui Gorge, mid-elevation rainforest, Caribbean, Costa Rica

Michael & Patricia Fogden / Green Thorntail (Discosura conversii) hummingbird female feeding at and pollinating Porterweed (Stachytarpheta sp) flowers, Sarapiqui Gorge, mid-elevation rainforest, Caribbean, Costa Rica

Kim Taylor / Hummingbird hawkmoth (Macroglossum stellatarum) feeding from a Vervain (Verbena bonariensis) flower. The animal leaves the frame. Tolpuddle, Dorset, UK

Paul Harcourt Davies / West Indian lantana (Lantana camara) in flower, Terracina, Lazio, Italy. September.

Nick Upton / Vervain (Verbena officinalis) flowerhead, Godlingston Heath, Dorset, UK. September.

Nick Upton / Vervain (Verbena officinalis) flowering on straggly, branching stems, Godlingston Heath, Dorset, UK, September.

Rolf Nussbaumer / Baltimore oriole (Icterus galbula) female perched on Berlandier's fiddlewood (Citharexylum berlandieri). South Padre Island, Texas, USA. April.

Rolf Nussbaumer / Giant swallowtail butterfly (Papilio cresphontes) nectaring on Prairie verbena (Glandularia bipinnatifida). Hill Country, Texas, USA.

Linda Pitkin / Argentinian vervain (Verbena bonariensis), Wandle Park, Surrey, England, August.

Alex Mustard / Detail of the eye of an Anglerfish (Lophius piscatorius). Chesil Beach, Dorset, UK, English Channel.

Alex Mustard / Face of an Anglerfish (Lophius piscatorius), Chesil Beach, Dorset, UK, English Channel.

Franco Banfi / Monkfish / Angler (Lophius piscatorius) swimming over seabed, Komiza, Vis Island, Croatia, Adriatic Sea, Mediterranean.

Franco Banfi / Monkfish / Angler camouflaged against seabed (Lophius piscatorius), Komiza, Vis Island, Croatia, Adriatic Sea, Mediterranean.

Franco Banfi / Monkfish / Angler (Lophius piscatorius) camouflaged against seabed with scuba diver in distance, Komiza, Vis Island, Croatia, Adriatic Sea, Mediterranean

Franco Banfi / Monkfish / Angler camouflaged against seabed (Lophius piscatorius), Komiza, Vis Island, Croatia, Adriatic Sea, Mediterranean.

Franco Banfi / Monkfish / Angler camouflaged against seabed (Lophius piscatorius), Komiza, Vis Island, Croatia, Adriatic Sea, Mediterranean.

Franco Banfi / Monkfish / Angler camouflaged against seabed (Lophius piscatorius), Komiza, Vis Island, Croatia, Adriatic Sea, Mediterranean.

Magnus Lundgren / Monkfish (Lophius piscatorius) photographed at night, Saltstraumen, Bodö, Norway. Magnus