Brune Suisse cows, cattle farm Pian Segno, Blenio vallee, Canton Ticino, Switzerland

Young boy drinking milk directly from a cow, Mundari tribe, South Sudan, Africa

Young boy from the Mundari tribe milking a cow, South Sudan, Africa

Man washing himself in cow pee, Mundari tribe, South Sudan, Africa

Young boy drinking milk directly from a cow, Mundari tribe, South Sudan, Africa

Milking sheep on a farm in Lazonby, Cumbria, England, United Kingdom, Europe

A dairy cow with a full udder, Tewkesbury, Gloucestershire, England, United Kingdom, Europe

Former high-level sportsman Xavier Philippe has converted to goat farming and the manufacture and sale of fresh cheese, tomme cheese, cottage cheese, cheese, yogurt, organic milk

Sow and piglets.

Cow being milked on the street in Madurai, Tamil Nadu, India, Asia

Close-up of Holstein cow teats and milking cups using lasers for automated milking equipment on a robotic dairy farm, North of Edmonton, Alberta, Canada

Close-up of Holstein cow teats and milking cups using lasers for automated milking equipment on a robotic dairy farm, North of Edmonton, Alberta, Canada

Holstein cow looking out of a milking stall waiting to be milked using automated milking equipment on a robotic dairy farm, North of Edmonton, Alberta, Canada

Long-tailed macaque nursing her young, Bako Malaysia

Bornean Orang-utan female and young

Milking mares in Son-kul, Kochkor, Naryn, Kyrgyzstan