Related topics: marine mammal · gulf of mexico

In male dolphin alliances, 'everybody knows your name'

It's not uncommon in dolphin society for males to form long-lasting alliances with other males, sometimes for decades. Now, after studying bottlenose dolphins in Shark Bay, Australia, for more than 30 years, researchers reporting ...

Amazon river dolphins in steep decline: study (Update)

Two kinds of river dolphins are dying off fast in the Amazon region, and may face extinction unless they are more vigorously protected against fishing, researchers in Brazil said Wednesday.

Fit for porpoise: Gene changes made 'river pig' unique

China's critically endangered Yangtze River porpoise is a distinct species, meaning it cannot interbreed with other porpoise types to pass on its DNA, a major analysis of the creature's genome revealed on Tuesday.

Dolphins tear up nets as fish numbers fall

Fishing nets suffer six times more damage when dolphins are around – and overfishing is forcing dolphins and fishermen ever closer together, new research shows.

Risso's dolphins plan their dives

Slipping beneath the surface of the water in pursuit of food sets the timer ticking for hungry dolphins; the pressure is on to locate food and make it back to the surface before they run out of oxygen.

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