Shark or sea monster? The Canadian marine mystery that still intrigues experts 90 years on

Debate continues to rage over whether a strange carcass found in 1937 was a new species or a basking shark. Either way, the case reveals how little is known about what lies beneath the wavesIts head resembled a dog’s, its downturned nose a camel’s, and at the end of its reptilian body was the tail...