There's a sinister reason why you never see narwhals in aquariums

There's a sinister reason why you never see narwhals in aquariums

Narwhals are among the most elusive creatures in the ocean, with their long, spiralling tusks giving them an almost mythological quality.And whilst many people would pay good money to see these unicorns of the sea in the flesh, they are notably absent from the world’s aquariums.