Ernie Janes / Pet domestic hamster (Mesocritecus auratus) beside scrabble letters spelling 'hammy', UK

Daniel Heuclin / Young girl with her pet Degu (Octodon degus). Chile, September. Model released

Grzegorz Lesniewski / Portrait of a European Hamster (Cricetus cricetus). Lublin Highland, Poland, June.

Michel Poinsignon / White mice (Mus genus) in socks (captive)

Eric Baccega / Female common hamster (Cricetus cricetus) with her newborn babies, age 2 days, Alsace, France, captive

Jane Burton / Agouti Mongolian Gerbil standing up.