New research finds there is significant variation in the anatomy of the human digestive system, with pronounced differences possible between healthy individuals. The finding has implications for ...

What Is the Bristol Stool Scale? Your poop offers clues about your health. But how can you describe your bowel movements (BMs) to your doctor without bringing in a sample? You and your doctor can use ...

The film discusses the vital role of earthworms in enriching and aerating the soil through their burrowing and feeding habits. It details the anatomy of earthworms, including their segmented bodies, ...