
Researchers found a new species in the waters off of the U.K. — but they didn't realize it at first
CBSN
A new species of sea slug has been discovered off the waters of the U.K. Researchers with Centre for the Environment, Food and Aquaculture Science said they originally thought it was a well-known species, Pleurobranchaea meckeli, found near Spain and the Mediterranean Sea – but they weren't sure.
There were no previous records of this type of slug in the U.K., "raising questions around its identity," the center said in a news release.
The new species of slug, which has been named Pleurobranchaea britannica, is between two and five centimeters long – less than two inches and has gills on its side. It was discovered during a routine survey of sea life in southwest England and the center searched for experts who specialized in this type of slug to help them identify it.

Mount Etna, the rambunctious volcano on the Italian island of Sicily, grumbled back to life on Monday, spewing hot ash and lava in a pyroclastic flow, the nation's volcano monitoring body said. There was no immediate report of any risk to the local population, which is accustomed to Etna's frequent eruptions, or to air travel.