Anup Shah / Celebes / Black crested macaque (Macaca nigra) females hugging each other as a greeting and comfort due to one's distress, Tangkoko National Park, Sulawesi, Indonesia.

Mark Taylor / Black-and-white Border Collie x Cocker Spaniel puppy, 11 weeks old, asleep on a cream teddy bear.

Anup Shah / African lion (Panthera leo) cub aged 4 months seeking comfort from its mother after being bullied by an older cub aged 10 months, Masai Mara National Reserve, Kenya, August

Petra Wegner / Eurasier, puppy, 10 weeks, lying down with soft toy.

Lisa Hoffner / Orphan baby Elephant (Loxodonta africana) pressing its trunk against a wooden post, part of an Elephant mother mimic to comfort new orphans. David Sheldrick Wildlife Trust Nairobi Elephant Nursery, Ke...

Edwin Giesbers / Whooper Swan (Cygnus cygnus) with its beak tucked under its wing. The Netherlands, June.

Edwin Giesbers / Wild Boar (Sus scrofa) wallowing in mud. The Netherlands.

Karl Ammann / Two Bonobo {Pan paniscus} orphans looking up and sitting in close proximity for comfort. Lola Ya Bonobo Sanctuary, Kinshasa, DR of Congo, 2007

Flip Nicklin / Bearded Seal (Erignathus barbatus) captured seal sucks on researcher's finger for comfort, Svalbard, Norway

Anup Shah / Child stroking juvenile chimpanzee {Pan troglodytes} with Sanctuary handlers, Sweetwater Sanctuary, Kenya

Anup Shah / Child holding juvenile orphaned 2-year Chimpanzee {Pan troglodytes} Sweetwater Sanctuary, Kenya

Tui De Roy / Long-finned Pilot Whale (Globicephala melas) stranded pod of 65, young volunteers comfort and cool tiny calf while waiting for rising tide, Golden Bay, New Zealand