The gray whales migrate every year from the seas off Alaska to Mexico's waters.

Approximately 20,000 whales migrate southward past the center from mid-December to end of January each year.

The whales migrate to Hawaii in the winter and raise their young there.

This can explain why large whales can migrate far distance in the oceans and not stop for rest.

Some researchers have suggested that the whales migrate into Hawaiian waters primarily in the autumn and winter.

In the summer whales migrate to those latitudes to feed.

Bowhead whales migrate to the northern part of the basin each summer.

Whalers at the time went to sea, sometimes for years, without knowing that whales migrate and that their paths could be charted.

The gray whale migrates from cold waters to the tropics each year in pods.

Most whales and other marine mammals avoid the harsh winters of the Arctic, and migrate to warmer waters.