The narwhal’s tusk appears to be situated in the center of its head, but it is really an exaggerated left front tooth that ...

Writing on Facebook, Ms Steffen said Narwhal, named after a species of whale that has a single large "tusk", had visited the vet on Tuesday. And X-rays had showed his secondary tail, about a third ...

Scientists who fitted heart rate-monitoring tags to Arctic narwhals have discovered a strange ... to look at the biology of a deep-diving whale." The tags she developed incorporate a heart monitor ...

The term “narwhal” is Scandinavian and means “corpse whale”, which refers to the creature’s mottle grey-black skin colour – the colour of a corpse. In fact when they are born ...