Morley Read / Clown treefrog (Dendropsophus reticulatus) opening its eyes, Amazon rainforest, Orellana Province, Ecuador. (non-ex)

Nick Hawkins / Grey seal (Halichoerus grypus) opening mouth close up off Bonaventure Island, Gulf of Saint Lawrence, Quebec, Canada. September.

Steve Downer / Timelapse of Primrose (Primula vulgaris) flowers opening, UK. March. Controlled conditions.

Steve Downer / Timelapse of Blackthorn (Prunus spinosa) flowers opening, UK, April.

David Fleetham / Opening in the mantle of Giant clam (Tridacna gigas) Tubbataha Reef, Philippines.

John Waters / Timelapse of a Common dandelion (Taraxacum officinale) seed head opening, UK. Controlled conditions.

John Waters / Close-up timelapse of a Common dandelion (Taraxacum officinale) flower opening, UK. Controlled conditions.

John Waters / Timelapse of the fruiting body of a Cage stink horn fungus (Clathrus ruber) opening, England, UK.

Alastair MacEwen / Time-lapse of Cherry (Prunus) blossom emerging, Somerset, England, UK, April.

Ingo Arndt / Honey Bee (Apis mellifera) opening brood cell before hatching, Germany. Winner of Fritz Polking portfolio prize, GDT 2012 competition.

John Cancalosi / American bullfrog (Lithobates catesbeianus) swimming near Water lilies (Nymphaea sp) Washington DC, USA. July.

Juergen Freund / Giant clam (Tridacna gigas) Raja Ampat, West Papua, Indonesia.