Pacific white-sided dolphins are frequently viewed on all our wildlife tours. There are estimated to be 900,000 pacific white-sided dolphins in the North Pacific. Dolphins travel in groups throughout their lives. In B.C., Pacific white-sided dolphins are usually encountered in groups of 10 – 100 animals, although some groups have been seen with 2,000 or more individuals. Dolphin remains are present in First Nation’s middens (waste heap) dating back 2,000 years, but were rare in B.C. during the 19th and 20th centuries. They were first spotted by fishermen in 1956 north of Vancouver Island, and sightings became more common in the 1980’s as Pacific white-sided dolphins started to spend more time in inshore waters and inlets along the B.C. coast. It’s possible that their long absence was related to a change in ocean temperatures and a shift in their prey distribution.