Follow On: Dogs are often able to develop a disease known as canine oral papilloma, also known as oral warts. Papillomas are small tumors that are caused by a virus, but they are almost always benign. In puppies, the oral papilloma virus shows up as small patches of what look like cauliflower.
The word earth is from the Old English eorthe, and derived from Proto-Germanic ertho. It is also related to the Old Saxon ertha, the Dutch aerde, and the German erda. The word earth is from the Old English eorthe, and derived from Proto-Germanic ertho.
Nasa's theory suggests life originated in warm, alkaline springs in Earth's ancient oceans NASA/Reuters Nasa have explained a theory which answers one of our biggest questions: How did life on Earth began? A new study from researchers at Nasa's Jet Propulsion Laboratory has proposed the water world theory as the answer to our evolution, which describes how electrical energy naturally produced at the sea floor might have given rise to life.