Fun Fact of the Day: Sea anemones benefit from clownfish who clean them by eating its parasites and dead tentacles, help circulate the water around them, attract potential prey with their bright colors, and provide nutrients from their droppings.
Fun Fact of the Day: The hard shell you see when coral is removed from water is the hard shell of an animal called a polyp. It is the cluster of polyps growing together that gives reefs their shape.
On this Day in History in 1903: Niagara Falls runs out of water because of a drought.
On this Day in History in 1782: 1st nautical almanac in US published by Samuel Stearns, Boston.