TJ Rich / Wirehaired daschund, Staffordshire bull terrier and Hungarian viszla in autumn colours, Wiltshire, UK

Mark Taylor / Black and white Jack-a-poo, Jack Russell cross Poodle, pup, 8 weeks old, jumping up.

Mark Taylor / Patterdale terrier dog puppy, Korka, age 4 months.

Lynn M Stone / West Highland Terriers in snow, Vernon, Connecticut, USA

Mark Raycroft / Yorkshire Terrier (Canis familiaris)

Mark Raycroft / Norfolk Terrier (Canis familiaris) running

Mark Raycroft / Boston Terrier (Canis familiaris) jumping

Petra Wegner,Petra Wegner / Welsh Terrier, bitch with puppies aged 8 weeks in snowy scene.

Florian Möllers / 'Jogi', a Jack Russell Terrier cross breed, male playing in the snow. Germany

Merryn Thomas / Domestic dog (3/4 Tibetan Terrier, 1/4 Cocker Spaniel) with ball. Isles of Scilly, UK, December 2011.

Petra Wegner / Tibetan terrier, sitting, portrait

Jane Burton / West Highland White Terrier sitting.