11.   Scientists are still baffled by much that surrounds it.

12.   The lobster population is thriving along the ocean floor off New England, baffling scientists who point to how much lobstermen are catching.

13.   The stubborn virus has baffled scientists researching its origin and mode of transmission.

14.   The stubborn new virus, which first spread from pigs to humans, has baffled scientists researching its origin and mode of transmission.

15.   Scientists are baffled by the discovery of a Paleolithic fluted-point tool in North Siberia previously thought to have existed only in North America.

16.   Scientists here are baffled by a crater that was punched into a forest in the northeastern state of Piaui about a week ago.