Mass Stingray Deaths on Brazilian Beach

Dozens of dead stingrays were found on a beach in Rio de Janeiro, Brazil, causing concern among locals. Biologists suggest that trawling, a fishing technique that involves pulling a net through the water, may be responsible for the incident, as no other dead species were found on the beach. The absence of pollutants or lack of oxygen in the water also supports this hypothesis. Environmentalists are calling for action to prevent similar incidents from happening in the future.