GENEVA — A leading conservation group uniting governments and civil society says all four known freshwater dolphin species are now threatened with extinction, after newly discovered information ...

The largest dolphin species is the orca, which measures up to 32 feet (9.8 m) long, while the smallest species is the Hector's dolphin, which grows to only 4.8 feet (1.5 m) long.

Scientists from the Cascadia Research Collective have discovered a rare dolphin-whale hybrid off the coast of Kauai, Hawaii, according to a report published last week.

10 years later, the species Inia geoffrensis returns to IUCN’s Red List; this time under the “Endangered” (EN) Category, the second most alarming on the list. The species Inia geoffrensis , commonly ...

Check our videos on the river dolphin species and download our briefs and publications to learn more about these amazing dolphins and their freshwater habitats! River Dolphin Rivers Initiative Summary ...