Was it an unknown marine monster that raised its head above the surface of the River Mersey in England on May 25? And what was the mysterious 7-foot-long creature that washed ashore near New York's famous Brooklyn Bridge on May 21?

Creature sightings, like UFOs, certainly create a sense of wonder and excitement -- until they're actually identified, stripping away the sense of something truly unexplained.

To read the rest of the article, click here.