Your poop reveals key clues about your health — here are a few red flags to keep an eye on.

Add Yahoo as a preferred source to see more of our stories on Google. Everyone poops, but it’s still something a lot of us have an awfully hard time talking about. (Unless you’re my 6-year-old and ...

Biologists and ecologists have long wished to gather high-quality data on exactly what the animals they study are eating, but how can such observations be made without disturbing the natural patterns ...