The cow has just one stomach (not four) but the cows stomach contains four separate compartments that work with the complex digestive system of the cow which allows the cow to control substances that are difficult and near impossible for many other animals to digest.
It is commonly thought that cows, mainly male cows called bulls, are aggravated by the colour red. This is in fact not true as cows are colour blind and cannot distinguish between different colours. This common misconception has come about from the days of bull fighting where trainers were typically seen using a red flag. It is not the colour of the flag that would spur the cow on but in fact, the waving of the material itself.
It is thought that around 18% of the greenhouse gases that are currently being released into the atmosphere are coming from livestock such as cows. This is due to the methane that cows expel through burping and flatulence.