Green Week, the week of Earth Day, is the perfect time to take a look at this place we call our planet. It can actually be a pretty strange place. Check out some of these weird facts and bits of information about Earth.

• Baby robins eat 14 feet of earthworms each day. http://www.funshun.com/amazing-facts/earth-universe-facts.html
• A huge underground river runs underneath the Nile , with six times more water than the river above. http://www.thatsweird.net/facts4.shtml
• After a volcanic eruption, some of the resulting rocks can float. http://www.strangevehicles.com/content/item/116957.html
• A shark can grow a new set of teeth in a week. http://www.liquidice.co.uk/joke/strangefacts.html
• 3% water of the Earth is fresh and the other 97% is salted. http://www.wonderfulinfo.com/winfo/earth1.htm