The meme sums it up: Narwhals, swimming in the ocean and causing a commotion, really are awesome. The “unicorns of the sea” have fascinated mariners and royalty for centuries, yet scientists ...

Often dubbed the unicorns of the sea, narwhals are strange and beautiful creatures with long tusks protruding from their heads. Members of the population of more than 80,000 can weigh up to 4,200 ...