A single giant blue eye, which was described as larger than a baseball, more like the size of a softball, washed ashore on Pompano Beach in Florida, earlier this week.
Scientists now say it is from a large swordfish.
Learn more about this story at the October 15, 2012 Christian Science Monitor article "Giant eyeball mystery solved: Experts say it belonged to swordfish (+video)".
And, as the title states, it includes a video that shows a scientist explaining the answer to the question: Where did this eyeball come from?
The caption to this video is: "Wildlife officials of the Florida Fish and Wildlife Conservation Commission have been posed a bit of a head scratcher after a beachcomber handed in a giant eye they found on Pompano Beach, Florida."
And, "The eye was found on 10 October when Gino Covacci noticed the deep-blue orb sitting on the high tide line. "It was very, very fresh," Covacci told local newspaper Sun Sentinel. "It was still bleeding when I put it in the plastic bag." The eye is currently on ice until it can be sent to Fish and Wildlife Research Institute in St. Petersburg, Florida. Marine biologists have not yet been able to identify what creature the eye has come from, with various possibilities offered including swordfish, tuna, a deep-water fish, or possibly a variety of giant squid."
Finally, "Carli Segelson, a spokeswoman for the Florida commission, told NBC news that genetic testing will most probably reveal the owner of the mystery eye. We've got our fingers crossed that the genetic test comes back inconclusive, so our minds can run wild with the possibilities of an uknown monster lurking in the deep."