(CNN) — Scientists say they have the first recorded video evidence of narwhals using tusks not only to strike and manipulate fish during feeding but also engage in what appears to be playful behavior, ...

As much as I applaud scientific research that reveals nature’s secrets, I feel a sense of satisfaction when some natural mysteries remain mysteries. The narwhal is my favorite example. Narwhals are a ...

With a fabled ability to purify tainted water or heal ailments, the narwhal's spiraling tusk was highly coveted during the Middle Ages when it was mistaken for a unicorn's horn. As narwhals (Monodon ...

Footage captured by aerial drones as part of a narwhal research camp in Tremblay Sound, Nunavut, is giving biologists new insights into the behaviour of one of the world’s most mysterious whales.

You’d think that narwhals couldn’t be more enchanting. These elusive, ice-dodging, deep-diving whales have 10-foot snaggletoothed tusks, and they see with sound. But then there’s the narwhal of east ...

Narwhals have been caught on camera colliding with deep ocean monitors. The mysterious toothed whale species native to the Arctic has been involved in "hundreds" of incidents with underwater recording ...

Underwater passive acoustic recording is vital for researchers to monitor and study marine animals in their natural environment with minimal disturbance. “Using passive acoustic monitoring to detect ...