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 ...

The findings are the result of a study involving examining data collected over half a century from Indian Ocean humpback ...

Biologists discovered killer whales and dolphins working together to hunt salmon, a behavior never before documented in this ...

There’s been a 140-year debate about whether two dolphin types most commonly seen in the waters off Southern California are related. Now, researchers affiliated with the National Oceanic and ...

Off the coast of British Columbia, killer whales are tailing dolphins, and both seem to be rewarded with fishy meals. But not ...

Dolphins live in all the world’s oceans and even some of the largest freshwater rivers. Like whales, they’re considered cetaceans, or marine-dwelling mammals. There are four main families of dolphins, ...

Strange discoveries are normal in the largest rainforest on Earth, from the thousands of Amazonian "Stonehenges" to the world's largest snake ever found on record that was recently discovered in the ...

Pink dolphins are an indicator species of the Amazon river, scientists say. Swimming with the piranhas and anacondas below the surface of the Amazon River in Bolivia is a rare species: pink, ...

From land-borne pathogens to high-speed vessel strikes, Pacific whales and dolphins are caught in a "perfect storm" where ...