Model shows how fish synchronize tail fins to save energy

Researchers from Tohoku University have developed a model that simulates the motion of fish tail fins. The model uncovers the underlying mechanisms behind a commonly observed phenomenon in fish: how they synchronize the movement ...

Discarded Christmas trees, a gift to Stockholm's fish

On a freezing January morning, dozens of discarded Christmas trees collected after the holidays are tossed into Stockholm's glacial waters, recycled to provide a welcoming habitat for marine life.

Ancient DNA pushes herring trade back to the Viking age

Historians have believed extensive herring trade started around the year 1200 AD, later controlled by the Hanseatic League. Now, a new study shows that it was already established in the Viking Age.

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