Jane Burton / Domestic Cat {Felis catus} Tortoiseshell mother 'Pansy' carrying / moving kitten.

Jane Burton / Domestic Cat {Felis catus} 9-weeks, 'Pansy's' Red and Blue-cream kittens, 'Ozzie' lying and 'Bella' sitting

Jane Burton / Domestic Cat {Felis catus} 'Pansy's' 9-week kittens play fighting.

Jane Burton / Domestic Cat, 17-day cream kitten 'Milo', offspring of 'Pansy'

Jane Burton / Domestic Cat, mother 'Pansy' eats the placenta after giving birth to kittens

Jane Burton / Domestic Cat, 8-week kitten 'Red' with owner, offspring of 'Pansy'

Jane Burton / Domestic Cat {Felis catus} Pansy's 8-week kittens, Red play fighting with his Silver sister.

Jane Burton / Domestic Cat, 2-week ticked silver kitten 'Bella', offspring of 'Pansy'

Jane Burton / Domestic Cat, newborn Burmese-cross kitten 'Red', still wet from birth, offspring of 'Pansy'

Jane Burton / Person holding 6-week kitten 'Red', offspring of 'Pansy'

Jane Burton / Domestic Cat {Felis catus} 'Pansy' with 40-day kittens playing with her tail.

Jane Burton / Domestic Cat, 8-day cream kitten 'Milo', eyes and ears just opening, offspring of 'Pansy'

Jane Burton / Domestic Cat, one-day kitten 'Red', eyes still closed, offspring of 'Pansy'

Jane Burton / Domestic Cat {Felis catus} 'Pansy' and her 5-week kittens eating from cat bowl.

Jane Burton / Domestic Cat, 2-week ticked-silver kitten 'Bella' miaowing, offspring of 'Pansy'

Jane Burton / Domestic Cat, 4-week kitten 'Red' with toy, offspring of 'Pansy'

Jane Burton / Domestic Cat {Felis catus} 'Pansy's' 5-week Red kitten 'Ozzie'

Jane Burton / Domestic Cat, mother cat 'Pansy' playing with her 5-week kittens 'Milo' and 'Ozzie'

Jane Burton / Domestic Cat, 1-day ticked-tabby kitten 'Gus', eyes still closed, offspring of 'Pansy'

Jane Burton / Person holding Domestic Cat, 2-week kitten 'Red', in hand, offspring of 'Pansy'

Jane Burton / Domestic Cat {Felis catus} 'Pansy's' 40-day kittens, play-fighting.

Jane Burton / Domestic Cat {Felis catus} 'Pansy's' 1-day Red kitten 'Ozzie'

Jane Burton / Domestic Cat, 7-day cream kitten 'Milo', eyes and ears just opening, offspring of 'Pansy'

Jane Burton / Domestic Cat {Felis catus} 'Pansy's' 9-week kittens, Red making friends with Tabby.

Jane Burton / Domestic Cat, 6-week kitten 'Red', offspring of 'Pansy'

Jane Burton / Domestic Cat, 3-week kittens, silver 'Donna', cream 'Milo' and blue 'Bella', offspring of 'Pansy'

Jane Burton / Domestic Cat, female 'Pansy' exhausted after birth, suckling her six newborn kittens

Jane Burton / Domestic Cat, 5-week kitten 'Red' with owner, offspring of 'Pansy'

Jane Burton / Domestic Cat, 4-week ticked-silver kitten 'Bella', offspring of 'Pansy'

Jane Burton / Domestic Cat, female 'Pansy' exhausted after birth, suckling her six newborn kittens

Jane Burton / Domestic Cat, 'Pansy' carrying 18-day cream kitten 'Milo'

Jane Burton / Domestic Cat, newborn kittens, still wet from birth, being cleaned by mother 'Pansy'

Jane Burton / Domestic Cat {Felis catus} 'Pansy's' 8-week ticked-silver kitten, walking profile.

Jane Burton / Domestic Cat, female 'Pansy' with litter of 3-week kittens

Jane Burton / Owner treats 8-week kitten 'Red' with flea spray, offspring of 'Pansy'

Jane Burton / Domestic cat, Litter of six 1-day kittens, offspring of 'Pansy' who has left them briefly to feed and relieve herself.

Jane Burton / Domestic Cat {Felis catus} 'Pansy's' 8-week kittens, 'Milo' playing with Tortoiseshell sister.

Jane Burton / Domestic Cat, 7-day ticked-tabby kitten 'Gus', eyes still closed, offspring of 'Pansy'

Jane Burton / Domestic Cat {Felis catus} 'Pansy' with her 9-week kittens, 'Bella' playing with tail.

Jane Burton / Domestic Cat, 2-week ticked-tabby kitten 'Gus', offspring of 'Pansy'

Jane Burton / Domestic Cat {Felis catus} 'Pansy's' 9-week Red kitten 'Ozzie'

Jane Burton / Domestic Cat {Felis catus} 10-week, 'Pansy's' Cream kitten grooming his Tortoiseshell sister.

Jane Burton / Domestic Cat {Felis catus} 'Pansy's' 5-week kittens, ticked-silver female excluded from food by her two brothers.

Philippe Clement / Wild pansy flower {Viola tricolor} Belgium

Philippe Clement / Wild pansy flower {Viola tricolor} Belgium

Paul Hobson / Mountain pansies, yellow flower {Viola lutea} Peak District National Park, England

Paul Hobson / Mountain pansies, yellow flower, in Peak District National Park {Viola lutea}

Paul Hobson / Mountain pansies, purple flower {Viola lutea} Peak District NP, England

Paul Hobson / Mountain pansy, purple flower {Viola lutea} Peak District NP, England

Paul Hobson / Mountain pansy, yellow flower {Viola lutea} Peak District NP, England

Tony Evans / Wild pansy in flower on sand dune {Viola tricolor}

Tony Evans / Mountain pansies flowering {Viola lutea}

DAVID TIPLING / Wild pansy growing on sand dunes {Viola tricolor} Newborough Warren NNR, Anglesey, Wales, UK

Christian Ziegler / Pansy Orchid (Diuris magnifica) flowers in Kings Park, Perth, western Australia

Christian Ziegler / Pansy Orchid (Diuris magnifica) flowers mimic nectar-rich legumes that live in the same habitat, Perth, western Australia

Pete Oxford / Peacock pansy butterfly (Junonia almana) on leaf at sunset. Kaziranga National Park, Assam, India

Etienne Littlefair / Blue argus butterfly (Junonia orithya) feeding on Water shrub-mint (Pogostemon stellatus) flower, Adelaide River Hills, Northern Territory, Australia.

Joel Sartore / Photo Ark / Sand dollar (Echinodiscus bisperforatus) portrait, from the Gulf of Oman. Captive.

Paul Harcourt Davies / Gargano pansies (Viola heterophylla graeca) in flower, nr San Giovanni Rotondo, Gargano Peninsula, Italy. April.

Paul Harcourt Davies / Gargano pansies (Viola heterophylla graeca) in flower in woodland clearing, nr San Giovanni Rotondo, Gargano Peninsula, Italy. April.

Paul Harcourt Davies / Gargano pansies (Viola heterophylla graeca) in flower, nr San Giovanni Rotondo, Gargano Peninsula, Italy. April.

Paul Harcourt Davies / Gargano pansies (Viola heterophylla graeca) with Golden alyssum (Alyssum saxatile) in flower at edge of woodland, nr San Giovanni Rotondo, Gargano Peninsula, Italy. April.

Paul Harcourt Davies / Eugenia's pansies (Viola eugeniae) in flower, Monte Terminillo, Lazio, Italy. June.

Joel Sartore / Photo Ark / Purple sand dollar (Encope michelini) portrait, Gulf Specimen Marine Lab and Aquarium, Florida. Captive.

Joel Sartore / Photo Ark / Sea biscuit (Clypeaster subdepressus) portrait, Gulf Specimen Marine Lab and Aquarium, Florida. Captive.

Paul Harcourt Davies / Eugenia's pansy (Viola eugeniae) in flower, Abetone, Emilia Romagna, Italy. June.

Paul Harcourt Davies / Eugenia's pansy (Viola eugeniae) in flower on mountainside, Mount Terminillo, Lazio, Italy. July.

Nick Upton / Dune pansy / Seaside pansy (Viola tricolor curtisii) flowering on coastal sand dunes, Merthyr Mawr Warren National Nature Reserve, Glamorgan, Wales, UK. April.

Nick Upton / Dune pansies / Seaside pansies (Viola tricolor curtisii) flowering on coastal sand dunes, Merthyr Mawr Warren National Nature Reserve, Glamorgan, Wales, UK. April.

Nick Upton / Dune pansies / Seaside pansies (Viola tricolor curtisii) flowering on coastal sand dunes, Merthyr Mawr Warren National Nature Reserve, Glamorgan, Wales, UK. April.

Christian Ziegler / Pansy Orchid (Diuris magnifica) flowers, Perth, Western Australia, Australia

Ashley Cooper / Heartsease pansy (Viola tricolor) and Ladys bedstraw (Galium verum) flowering, Walney Island, Cumbria, UK. June.

Olga Kamenskaya / Altai pansy (Viola altaica) Valley of Petrified Clouds. Altai Republic, Russia

Robert Thompson / Winter pansy (Viola sp) close up in garden, Banbridge, County Down

Nick Upton / Dune pansies / Seaside pansies (Viola tricolor curtisii) flowering on coastal sand dunes, Merthyr Mawr Warren NNR, Glamorgan, Wales, UK, September.

Nick Upton / Dune pansies / Seaside pansies (Viola tricolor curtisii) flowering on coastal sand dunes, Merthyr Mawr Warren NNR, Glamorgan, Wales, UK, September.

Paul Harcourt Davies / Heartsease (Viola tricolor subalpina). Dolomites, Italy. June.

Marie Lochman / Donkey orchid (Diuris magnifica) north of Perth, Western Australia. Western Australian endemic

Marie Lochman / Donkey orchid (Diuris magnifica) north of Perth, Western Australia. Western Australian endemic

Linda Pitkin / Field pansy (Viola arvensis), Kent, England, May .

Linda Pitkin / Field Pansy (Viola arvensis) Papercourt Marshes nature reserve (SWT), Send Marsh, Surrey, England, May.

Mike Read / Long-spurred pansy (Viola calcarata) growing in a wildflower meadow, Plateaux de Beurre, Vercors Regional Natural Park, France, June

Steve Nicholls / Mountain pansy (Viola lutea) on Widdybank Fell in Upper Teesdale, Co. Durham, England, UK, June.

Erlend Haarberg / Wild pansy (Viola tricolor) with single Dandelion (Taraxacum sp) Innlandet, Norway, June.