A Holstein’s spots are like a fingerprint or snowflake. No two cows have exactly the same pattern of spots.A cow gives nearly 200,000 glasses of milk in her lifetime.Cows often have their ears pierced-with I.D. tags.What a cow eats affects how much milk she gives.Cows drink 25-50 gallons of water each day. That’s nearly a bathtub full.A cow weighs about 1400 pounds. That’s probably 10-25 times what we weigh!