Why babies eat feces?

Babies don't have the most discerning of palates. They will put anything in their mouths, and it doesn't have to taste good. One of my children actually put mothballs in her mouth and was walking around as if there were nothing happening. (I actually met one other person who did the same thing).I have seen children with bugs, worms, feces from more than one species, animal food, etc. in their mouths. They learn from us what is "Yummy" and what is "Yuckie". Remember, infants learn with their senses and the sense of touch and taste associated with their mouths is one of their most active in the first year of life. It's part of the learning process. Now, if it continues beyond that stage, you may need to confer with someone a little more knowledgeable than I.