Eric Baccega / Giant panda (Ailuropoda melanoleuca) cub playfuly chewing a bamboo stick. Yuan Meng, first giant panda ever born in France, is now 10 months old and still feeds on his mother's milk, Captive at Beauva...

Suzi Eszterhas / Giant Panda (Ailuropoda melanoleuca) six-to-eight month old cub drinking milk from bowl, Chengdu, China

Laurent Geslin / Fulani woman feeding milk to her child at dawn after milking the cattle, North Senegal, West Africa, 2005

Laurent Geslin / Fulani woman feeding her grandchildren with milk, north Senegal, West Africa, 2005

Laurent Geslin / Offering milk to 'holy' Black rats {Rattus rattus} temple Deshnoke, Rajasthan, India

Chris Mattison / Amazon milk frog (Phrynohyas resinifictrix), captive, occurs South America

Alex Mustard / 2020VISION / Female Grey seal (Halichoerus grypus) juvenile swimming over kelp, off Farne Islands, Northumberland, England, UK, July. Did you know? Grey seal milk is 60% fat and although they are fed milk for just...

Sandesh Kadur / An elderly Toda woman sits inside her hut preparing a meal of raagi on a traditional wood-burning stove. Todas are strict vegetarians and their diet consists largely of plant and milk products. Wester...

Lisa Hoffner / Hungry orphan elephants (Loxodonta africana) greet the milk delivery trailer. David Sheldrick Wildlife Trust Nairobi Elephant Nursery, Kenya, April 2007. Model released

Lisa Hoffner / A young orphan Elephant (Loxodonta africana) being bottle fed milk by its keeper. David Sheldrick Wildlife Trust Nairobi Elephant Nursery, Kenya, July 2010. Model released.

Andy Sands / Wood White butterfly (Leptidea sinapis) feeding on flower of Purple Milk-vetch, Captive, UK,

Guy Edwardes / Young Grey Seal {Halichoerus grypus} taking a break from suckling from mother, Donna Nook, Lincolnshire, England, January