During a 2009 search for the Loch Ness Monster, scientists in Scotland discovered more than 100,000 submerged golf balls instead. (The total number of lost golf balls in the United States each year is estimated to be around 300 million.)

Related Link: Researchers at the University of Maine have developed a prototype of a biodegradable golf ball made of compressed lobster shells designed for use on a cruise ship. A typical biodegradable golf ball costs around $1 to produce, a lobster shell ball can be made for 19 cents.

[Sources: The New York Times and University of Maine. See previous Numbers of the Day here. ]