The findings could help infer whale behavior from acoustic recordings alone.

Researchers believe that the ocean giants doze underwater for 10 to 15 minutes at a time with their heads facing upward.

More than 40 years since the end of commercial whaling, research reveals an increase in sightings of whales in the south-eastern Atlantic.

Scientists say the noise pollution poses a potentially deadly threat to the second-largest dolphin species.

In the past, the gray whale population recovered fairly quickly. But data on baby whales show that isn’t happening, and a new study finds an alarmingly high mortality rate.