The ocean covers more than 70% of our planet. It is a mysterious world filled with incredible life. Marine animals are vital for the Earth's health. They provide food and even help produce the air we ...

Once the subject of mythical accounts of magical power, the helix-shaped tusk of the narwhal, or "unicorn" whale has proved to be an extraordinary sensory organ, according to a team of researchers ...

The long, spiral tusks of narwhals could be used by these Arctic whales to stun or even kill prey, according to wildlife researchers who have spied on these elusive creatures using drones. They ...

The BBC has filmed the elusive narwhal - the arctic whale best known for its unicorn-like tusks. A BBC team has filmed, what it believes to be the first, aerial footage of the narwhal whales. During ...