Clarke, a former whale-watching guide, said killer whales do appear in the harbour but it is not a common event and they rarely stay for long. The whale, known as T73B, tends to be a loner, according to one researcher. (CHEK)Josh McInnes, a whale researcher at the University of Victoria, said he has encountered the same whale, known as T73B, in waters off Alaska. He said transient killer whales spend much of their time in groups of about three to five but they also hunt alone. Despite the natural solitary tendencies of transient orcas, the Comox whale appears to be a unique animal, he said.

Source: CBC News August 01, 2018 00:45 UTC