Despite their name, killer whales (orcas) are actually dolphins.

New research has revealed that marine mammals who live far below the ocean's surface are not immune from the burden of toxic ...

Climate change is currently threatening whales, dolphins, and seals living in U.S. waters, according to a new study. About 70% of the marine mammals surveyed are facing habitat loss and food scarcity ...

PORTLAND, Maine (AP) — Whales, dolphins and seals living in U.S. waters face major threats from warming ocean temperatures, rising sea levels and decreasing sea ice volumes associated with climate ...

The sex and age of an animal turn out to be stronger predictors than habitat for higher PFAS levels, suggesting they ...

The nonprofit began in 2012 to document Atlantic bottlenose dolphins that live in both forks of the St. Lucie River and ...

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After two years of construction, Atlantic bottlenose dolphins are currently acclimating to the new 2.2-acre, 1.042-million-gallon exhibit known as the Dolphin Oasis at the Gulfarium Marine Adventure ...

How big they are: From 5 to 32 feet (1.5 to 10 meters) long, depending on the species Dolphins live in almost every ocean, except most tend to avoid the cold waters in the Arctic and around Antarctica ...