Light micrograph of a human proliferating mammary gland during estrous cycle. Sprouting gland tissue can be seen in the upper left field (haematoxylin eosin staining)
Hündin säugt ihre neugeborenen Welpen
Bezerro mamando Avaré, São Paulo, Brasil
WhiteCatNursingFourKittensHQ
A domestic goat kid feeding on it's mothers milk in Victoria, Australia