A group of veterinarians in Visakhapatnam, India, made a disturbing discovery when they performed surgery on a 6-year-old cow. What they pulled out of the animal's stomach is a harsh reminder of ...

Most people think that cows have four stomachs, but in fact they have just one – with four separate chambers: the rumen, reticulum, omasum and abomasum. The complex stomach allows the animal to ...

A scientist guides a long tube into the mouth and down into the stomach of Thing One, a two-month-old calf that is part of a research project aiming to prevent cows from burping methane ...