Eerie trees, prowling tigers and rare dolphin hunting behaviours have been featured at the 2026 Mangrove Photography Awards.
The record "is another clear signal of an ocean under growing stress", according to Dr Samantha Burgess from the European Copernicus climate change service.
Global oceans recorded their hottest July on record, partly fuelled by developing El Niño conditions, as wildfires continue to ravage western Europe.
Swimming in rivers and lakes is booming, but heavy rain, sewage overflows and farm runoff can lead to disease outbreaks. Here's how to spot when the risks to health are highest.
Scientists fear that high sea temperatures could have wide-ranging consequences for marine life.
The sad fate of a stranded humpback in Germany raises bigger questions about distressed whales – and how to help them.
David Lewington was rescued by Martyn Ward at Chapel Porth beach in 1986.
When photographer Jialing Cai plunged into the ocean in the dead of night, she found creatures of the deep had risen up to meet her.
A charming image of two southern elephant seal pups in a Falklands rock pool has earned Australian photographer Matty Smith the 2026 Underwater Photographer of the Year title
