The document provides various facts about dogs in 20 short paragraphs. It discusses dogs' physical traits like their ears, eyes, teeth, sense of hearing, and body temperature. It also shares statistics about dog ownership in the US, life expectancy of dogs, dog bites that cause human deaths annually, and the number of puppies born each year in the US. The document ends by noting dogs' nose prints are unique and they can express over 100 facial expressions.