Definition
The term 'black whale' is a somewhat ambiguous term that historically could refer to several different species of dark-colored whales. It most commonly refers to the pilot whale or the right whale, but can sometimes be used to describe other dark-colored whales. These whales are typically social and migrate. The term is less precise than modern scientific classifications. Think of 'black whale' as a general label, like calling all black dogs 'blackie'. It's descriptive but doesn't pinpoint a specific type.