Crédits photos

Fotolia:

ant236, dani kreienbühl, Doreen Salcher, Eric Isselée, nyul, schweitzer-degen, Spencer, Gabriella88, Andre, mtsyri, mica, ExQuisine, blende40, Heike Rau, yamix, H.D. Volz, Benshot, reises

Getty Images:

Bobby Haas / National Geographic, Karen Huntt / Photodisc, Jean-Paul Nacivet / Photographer's Choice, Grove Pashley / Photographer's Choice, David Zimmerman / UpperCut Images, Tay Jnr / Riser, Comstoke, Chris Stein - Photodisc

I-Stock photo:

Serafim Nenarokov, Vicki Reid, Lorraine Swanson, Dane Wirtzfeld

Plainpicture:

alt-6, Erickson, Fancy, Andreas Körner, Pictorium, Westend61

sxc :

Adamci, Eszter, GoFish, Ilco, Jonathan Ng, mordoc, morcomm, Svyatoslav Palenyy, Max Somma, Fernando Weberich, Peter Werner

Autres sources : Didier Michalet, CCB, Noël Bouchut, Burlot, Dimitri Tolstoï, Dupuy et Berbérian,

Watier,

Halfdark, Stratos Ultra, Sami Sarkis, Microsoft clipart, Mr Rousseau (ICV), Bernard Molot (IFV)