Metal Levels in Marine Stingrays: A Closer Look at Johor Waters
Have you ever wondered what lurks beneath the surface of Johor Waters when it comes to marine life? A recent study took a deep dive into the heavy metal levels of stingrays from Pontian, Muar, and Batu Pahat. These metals, like copper, zinc, arsenic, cadmium, lead, and mercury, can build up in the r