Adrian Davies / Orange tip butterfly female {Anthocharis cardamines} close up on Lady's smock flower, UK

Andy Sands / Orange tip butterfly (Anthocharis cardamines) on bluebell flower in English woodland, Hertfordshire, England, UK, April.

Colin Varndell / Orange-tip butterfly (Anthocharis cardamines) resting on Cowslip (Primula veris). Dorset, England, UK. April.

Steven David Miller / A Cruiser butterfly (Vindula arsinoe) rests on the tip of a palm frond, Cairns Botanical Gardens, Queensland, Australia. Captive.

Paul Hobson / Orange tip butterfly (Anthocharis cardamines) female resting on Cow parsley (Anthriscus sylvestris). Sheffield, England, UK.

Paul Hobson / Orange tip butterfly (Anthocharis cardamines) male resting on fern. Yorkshire, England, UK. April.

Robert Thompson / Provence orange-tip butterfly (Anthocharis euphenoides) resting on Oxeye daisy (Leucanthemum vulgare). South of Casteil, Pyrenees Orientales, south west France. May.

Robert Thompson / Orange-tip butterfly (Anthocharis cardamines), male on Cuckooflower (Cardamine pratensis). Brackagh Moss National Nature Reserve, Portadown, County Armagh, Northern Ireland, UK. May.

Robert Thompson / Orange-tip butterfly (Anthocharis cardamines), male on Cuckooflower (Cardamine pratensis). Brackagh Moss National Nature Reserve, Portadown, County Armagh, Northern Ireland, UK. May.

Bert Willaert / Spinecheek anemonefish (Premnas biaculeatus) living in a symbiotic relationship with Bubble-tip anemone (Entacmaea quadricolor). Kimbe Bay, West New Britain, Papua New Guinea

Robert Thompson / Orange tip butterfly (Anthoccharis cardamines) egg, Scarva Canal, County Armagh, Northern Ireland. May.

Robert Thompson / Orange tip butterfly (Anthocharis cardamines) female on Bluebell flower (Hyacinthoides non-scripta) Clare Glen, County Armagh, May.