“Darwin’s followers believe milk evolved from sweat. But milk is nutritious food containing proteins, fats, and sugars, while sweat is a salty mix of various poisons, including urea. (Now you can see why evolution takes millions of years; it’s all those platypus babies drinking sweat until a series of “miracle mutations” finally turned it into milk!)”
Source: Parker, Mary and Gary, The Complete Zoo Adventure¸ Master Books, Green Forest, AR, 2007, p.21.