Sperm whales do it. Dolphins do it. Orcas do it. And now, researchers have unveiled the fossilized skull of a 28-million-year-old marine mammal that did it too – used sound to find its next meal or swim safely through turbid waters.
The creature, Cotylocara macei, is the earliest known cetacean to show skeletal evidence for a natural form of sonar, according to a research team reporting the results in Thursday's issue of the journal Nature.




Family members and victims of the Sept. 11, 2001, terrorist attacks joined three members of Congress on Wednesday in calling on the Obama administration to declassify portions of a congressional investigation that addresses allegations of possible Saudi government support of the hijackers.
A stylish young woman clad in tight maroon pants and a short leather jacket has her fellow up against a brick wall as they share a passionate kiss. The caption underneath the photo reads, “Maybe never fell in love.”
A gripping battle between the Central Intelligence Agency and the Senate Intelligence Committee broke into public view Tuesday morning, as Senator Dianne Feinstein openly accused the CIA of spying on congressional staffers as they investigated the agency’s illegal detention and interrogation programs under President George W. Bush.
Ohio authorities shut down a hydraulic fracturing, or fracking, natural gas operation in Mahoning County on Monday after two earthquakes were felt in the area, near the Pennsylvania border, local newspapers and broadcasters reported.





























