Fisheries and Oceans Canada is trying to find out what killed an orca found dead on the North Coast.
DFO says the young female was found washed up on Dundas Island May 30th.
Marine mammal expert and veterinarian pathologist Dr. Steven Raverty conducted a necropsy on the killer whale, but found no obvious cause of death and no physical trauma.
Further diagnostic testing will be done and DNA analysis will be conducted to determine what population or ecotype the orca belonged to.
Fisheries and Oceans Canada averages two or three reported dead killer whales per year across the Pacific Region.