They have long been considered one worldwide species known scientifically as Orcinus orca, with different forms in various regions known as "ecotypes." However, biologists have increasingly ...

Three ecotypes of orca are already known to live along this stretch of the coastline. They are referred to as “residents,” “transients,” and “offshores”. Transients, also known as Bigg ...

Normally the orca pods here fished alone ... only in the 1970s and aren’t sure how many are found in each of the ecotypes now recognized. Here in the North Atlantic there may be multiple ...