Just cows... and maybe a buffalo, ox and yak or two. What can you say about cows? Well, here are some udderly interesting facts:

• Cattle belong to the bovine family.
• The first cow in America arrived in Jamestown colony in 1611.
• All domestic cows are descended from two kinds of oxen.
• Old cows in India have their own nursing homes.
• Cows have almost 360-degree panoramic color vision.
• Cows have hollow horns and come in a variety of colors.
• Cows can walk up stairs, but not down again because their knees don't bend properly for going back down.
• A cow on a pasture can emit about 350 liters (230 grams) of methane per day.
• The average cow produces 40 glasses of milk each day.
• The average life span of a cow is 25 years

Enjoy this screensaver of 52 paintings and pictures of cows.