Mozilla on Tuesday released an overhauled version of its Firefox browser for Android phones that features better speed and stronger privacy. Dubbed Firefox Daylight, the new version is available in Europe and will be released in North America on Thursday.

The scientific community knew Somali sengi elephant-shrews once roamed parts of Africa. There were examples -- some gathered hundreds of years ago -- in museum collections. It's just that no scientist had logged one in the wild since the late 1960s.