Our marine mammal expert Richard Sabin takes us through what scientists know – and don’t know – about narwhals, also known as unicorns of the sea. Ask a world-leading scientist a silly question, get a ...

Growing up to ten feet long, they were once believed by some medieval cultures to be the horns of ... surroundings. "Narwhals are known for their 'tusking' behavior, where two or more of them ...

And what was the source of the horn given to Emperor Ferdinand? In the late stages of the 16th century, European explorers ...

Each male has a tusk, and occasionally two tusks, but fewer than ... The great spiralling tusks of the narwhal, which were believed to be the horns of unicorns, were safeguarded in Churches ...