They breed in groups of 3-2 males and one female. Twelve months later a calf is born and at 2 months of age this calf travels north. 1 calf is born at a time. The grey whale lives in the north pacific ocean and likes shallow coastal regions. The species cam endangered, because the whalers hunted and kill more than they needed.
Some cultures still hunt whales for food.
In the 19th and early 20th centuries the whalers hunted grey whales to the brink of extinction. The whale sanctuary in Antarctica. Programmes have come into existence to stop vessels going in the same channels as the whale. Spotter planes do this job as well. Responsible tourism helps fund scientific research to increase our understanding of these whales.