Physeter
In the medieval era and earlier, so little was know about whales that they were regarded in the same manner as dragons and sea serpents. Today physeter, meaning blower or whirlpool, is the genus name of sperm whales. And while the name always referred this species of whale, what was believed about their appearance and behavior was worthy of being called a mythical beast. The earliest surviving accounts of physeter was from Pliny the Elder. He states that it was the largest beast in the Sea of Gaul, today known as the North Atlantic. According to Pliny the physeter would rise itself up in a column above the masts of ships and spray out water from its head in a fountain like torrent. The physeter was often found in medieval bestiaries, where it was described as a giant fish with a horse like head and neck. It's head had two spouts from which it could spray out water. A horse like mane ran down the back of its neck. Often the depiction would end here, with the body hidden beneat...