Mexico's government says it plans to use dolphins trained by the US Navy to try to save the world's most endangered marine species, the vaquita porpoise. Environment Minister Rafael Pacchiano said ...

The Yangtze river’s finless porpoise is one of the very few porpoises (relatives of dolphins and whales) that live in fresh water. Its small size and cute 'smile' make it much loved in China and ...

Porpoise are small, fully aquatic mammals that are classified as toothed whales. There are seven different species, some of which are endangered. It is unclear why dolphins attack porpoises but ...

Whalewatchers have spotted more than 11,000 whales, dolphins, porpoises in Scottish waters ... and scientists to better understand the different species found in Scotland’s waters.