Kim Taylor / Timelapse of a cluster of Large white butterfly (Pieris brasssicae) eggs hatching over the course of a day, caterpillars begin to feed. Controlled conditions.

Dave Bevan / Large white (Pieris brassicae) caterpillars eating Broccoli (Brassica oleracea) leaves, with Small white (Pieris rapae) caterpillars, Carmarthenshire, Wales, UK. September.

Chris Mattison / Small White / Cabbage white butterfly (Pieris rapae) on Lavender, Sheffield, UK July (Focus-stacked image)

Simon Colmer / Green-veined White butterfly egg (Pieris napi) above, Orange-tip butterfly egg (Anthocharis cardamines) below, on Garlic mustard (Alliaria petiolata) Sussex, UK. June.

Jussi Murtosaari / Green-veined white butterfly (Pieris napi) in flight, Jyvaskyla, Keski-Finland / Central Finland, Finland, September.

Silvia Reiche / Cabbage White (Pieris rapae) butterfly on flower, Netherlands

Robin Chittenden / Boy looking at Green-veined White butterfly (Pieris napi) on his hand, Dorset, UK, May 2013, Model released.

Benjamin Barthelemy / Large white butterfly (Pieris brassicae), Vallee de l'Eure (Eure Valley), Eure-et-Loir, France, August

Russell Cooper / Green Veined White Butterfly (Pieris napi) resting on the flowering stem of a native English Bluebell (Endymion nonscriptus) Banstead Woods. Site of Special Scientific Interest (SSSI). North Downs Su...

Robert Thompson / Green-veined white butterfly (Pieris napi) resting on Bluebell flower, Clare Glen, County Armagh, Northern Ireland, UK, May

Stephen Dalton / Large white butterfly {Pieris brassicae} in flight over cabbage plant, UK

Kim Taylor / Female Large white butterfly (Pieris brassicae) in flight, Surrey, UK. Multiple exposure