John Abbott / Halloween pennant (Celithemis eponina) male in flight, Texas, USA, August.

Greg Oakley / Crimson Rosella (Platycercus elegans) with juvenile, Victoria, Australia

Greg Oakley / Crimson Rosella (Platycercus elegans) male, Victoria, Australia

Franco Banfi,Franco Banfi / Ocean Sunfish (Mola Mola) with Longfinned bannerfish (Heniochus acuminatus) Crystal Bay, Nusa Penida, Bali Island, Indonesia, Pacific Ocean

Rolf Nussbaumer / Haloween pennant dragonfly {Celithemis eponina} silhouette at sunrise, Welder Wildlife Refuge, Sinton, Texas, USA.

Rolf Nussbaumer / Haloween pennant dragonfly {Celithemis eponina}pair mating, Welder Wildlife Refuge, Sinton, Texas, USA.

Fred Bavendam / Longfin Bannerfish (Heniochus acuminatus) pair, Bali, Indonesia

Pascal Kobeh / Cup coral (Turbinaria mesenterina) housing Blackblotch or blackspot squirrelfish (Sargocentron melanospilos) and a longfin bannerfish (Heniochus acuminatus), New Caledonia, Pacific Ocean.

George Sanker / Halloween pennant (Celithemis eponina) dragonfly resting. Everglades National Park, Florida, USA. March.

David Gallan / Crimson rosella (Platycercus elegans) feeding, New South Wales, Australia, May.

Gary Bell/ Oceanwide / Longfin Bannerfish (Heniochus acuminatus) and sea fan, Great Barrier Reef, Australia

Steven David Miller / Crimson rosella (Platycercus elegans) juvenile perched in tree. Yarra Ranges, Victoria, Australia.