Nearly all animals follow 24-hour activity cycles based on their genetically built-in circadian clocks. But one beetle species operates in 48-hour time chunks instead—apparently driven by a strict ...

CBS News’ “48 Hours” correspondent Erin Moriarty closed a chapter of a story on Saturday that she had been following for over 20 years. In 2000, as Jane Dorotik was awaiting trial after being arrested ...