It covers nearly three-quarters of our planet but the ocean floor is less mapped than the moon, an astonishing fact driving a ...

Drone footage has captured narwhals using their iconic long tusks to engage in previously unseen behaviour, including to play with their food.The Arctic whale species, an inspiration for mythical ...

James K. Polk expanded the U.S. more than any other president. Now his portrait hangs in the Oval Office, a signal that ...