California has a new star, the Eastern Pacific black ghostshark. But the newly identified species prefers to stay out of the sun—and the spotlight. And with a club-like sex organ on its forehead, the male ghostshark isn't likely to get any leading man roles. Pictured alive underwater (top) and preserved in a museum collection (bottom), the new ghostshark uses winglike fins to "fly" through its dark habitat, thousands of feet deep off the coasts of California and Mexico's Baja California peninsula, a new study says. (See map.) The ghostshark seems to have flown under the scientific radar too. Since the...