Costa Rican scientists may have discovered a new species of ghost shark in Pacific waters near Cabo Blanco and Cano Island. The latest discovery has a “shorter” snout, a “darker coloration pattern” and a “much longer spine on its dorsal fin”, according to Arturo Angulo Sibaja, a biology professor at the University of Costa Rica. The discovery marked the only such species “known for the Central American coast”, Sibaja said, adding genetic analysis indicated the new species had “no reproductive...