Anup Shah / Olive baboon babes hugging one another {Papio anubis} Kenya, East Africa

Mark Taylor / Young girl cuddling golden Cocker Spaniel puppy 'Maizy'. Model released.

Anup Shah / Lion-tailed macaque (Macaca silenus) male hugging a distressed juvenile to comfort it. Anamalai Tiger Reserve, Western Ghats, Tamil Nadu, India.

John Downer / Bengal Tigers (Panthera tigris tigris) resting in the shade national park, India, taken on location for 'Tiger - Spy in the Jungle' March 2007

Bryan and Cherry Alexander / Nenets girl with pet Swan cygnet, probably Whistling swan (Cynus columbianus). Nadym Tundra, Yamal, Western Siberia, Russia, 2000.

Jerry Monkman / Young girls sledding at Wagon Hill Farm in Durham, New Hampshire, USA, January 2009.

Jeff Rotman / Woman trainer hugs Bottlenose dolphin (Tursiops truncatus) Red Sea, Eilat, Israel Model released.

LYNN M. STONE / Girl hugs Golden retriever puppy on beach {Canis familiaris} Florida, USA. Model released

Flip de Nooyer / Coastal fog hugs cliffs along Elsehul Bay, South Georgia Island