In the 1970s, a small group of Greenpeace activists had a unique idea for how they could put an end to commercial whaling.

Researchers studying sperm whale communication say they've uncovered sophisticated structures similar to those found in human language.

In a world-first, scientists had a "conversation" with a whale. Now, researchers are trying to find out what they are actually saying.

As huge offshore wind farms spread across Europe's North and Baltic seas, efforts grow to buffer the impact on wildlife.