Ingo Arndt / Cape gannets (Morus capensis / Sula capensis) at nesting colony, zooming from tight to wide shot, Lamberts Bay, South Africa, December

Alex Mustard / A close up of the eye of a Tassled wobbegong shark (Eucrossorhinus dasypogon) illuminated with light from a snoot tube, Batanta Island, Raja Ampat, West Papua, Indonesia.

Alex Mustard / The skin of a Tassled wobbegong shark (Eucrossorhinus dasypogon), showing the rough placoid scales, commonly called denticles. These scales have the same structure as the shark's teeth and are as roug...

Alex Mustard / Portrait of a green iguana (Iguana iguana) amongst grass. Puerto Aventuras, Quintana Roo, Mexico.

Alex Mustard / Portrait of Male Sockeye salmon (Oncorhynchus nerka) showing teeth. Adams River, British Columbia, Canada, October.

Konrad Wothe / Mandrill (Mandrillus sphinx) male in zoo, face portrait, West Africa

Claudio Contreras / California condor (Gymnogyps californianus) feather detail, IUCN Critically Endangered, captive.

Jan Hamrsky / Phantom midge larva (Chaoborus flavicans) head detail, Europe, October, controlled conditions

Jan Hamrsky / Great diving beetle (Dytiscus marginalis) female, Europe, September, controlled conditions

Jan Hamrsky / Great diving beetle (Dytiscus marginalis) refilling its air supply under the wing cases, Europe, September, controlled conditions

Jan Hamrsky / Darner dragonfly nymph (Aeshnidae) feeding on mayfly nymph, Europe, July, controlled conditions

Jan Hamrsky / Darner dragonfly nymph (Aeshnidae) feeding on mayfly nymph, Europe, July, controlled conditions