A 15-year-old girl denied a horse from her parents has turned to a cow to fulfil her riding dreams. Teenager Regina Mayer, from southern Germany, is able to ride her cow, Luna. She has even trained her bovine pet to soar over a beer-crate hurdle like a regular show jumper. Why, you may well ask, when most cow-owners are surely content to let the creatures chew and lactate and sit down to indicate the imminent arrival of rain? Well, Regina's parents wouldn't let her have a horse.

Born in 1958 in Abbazia, Italy, Frank Horvat is considered one of the founding fathers of French fashion photography. Frank Horvat: Storia di un Fotografo is on at Palazzo Chiablese Musei Reali, Turin, until 16 June. Here: Prostitutes, Bois de Boulogne, 1956. (Photo by Frank Horvat/The Guardian)

Odontodactylus scyllarus, known as the peacock mantis shrimp, harlequin mantis shrimp or painted mantis shrimp, is a large mantis shrimp native to the Indo-Pacific from Guam to East Africa.

Sharon Montrose has what most people consider a dream job: She photographs adorable animals – from lions to flamingos to knobbly-kneed giraffes – and sells prints online at her store, The Animal Print Shop. But what's her job really like? Does she ever get scared? What's the trickiest animal to photograph?