Two bull sharks, rays and fish were found dead in a sand-blocked estuary at Playa Langosta near Tamarindo. Environmental authorities are investigating the cause.
Researchers are examining olive ridley sea turtles at Ostional for exposure to antibiotic-resistance genes as part of a broader investigation into marine pollution. Details...
Democrats won control of both chambers of the US Congress in Tuesday's midterm elections. The result hands President Donald Trump a divided government for...