There are, of course, a number of whale species that do not migrate at all, but remain in the waters in which they are safest and most comfortable. They can emit a click at around 230 decibels, considerably louder than a jet engine at around 150db. Sperm Whale Migration Female sperm whales travel in groups with their young, circling the oceans to find food, they may travel a million miles in a lifetime. Humpback Whales make a long migration. During this migration, they eat virtually nothing for at least 4 months and live on body reserves. The main diet source for the Sperm Whale is squid. They then migrate back to the tropics segregated by sex and age, the older and pregnant whales migrating first, with the sexually immature whales bringing up the rear. The Sperm whale is the largest toothed mammal in the world! A gray whale reported in 2015 broke all marine mammal migration records - she traveled from Russia to Mexico and back again. This allows sounds that travel in the water to tell them the distance of objects, other whales, and more. This unique sperm whale habitat has generated much attention for the island, resulting in whale watching becoming one of Dominica's most well-known activities. And returning southward during the fall to mate and give birth to new offspring. They can dive very deeply, and may remain under the water for up to 1 hour. Sperm whales have one blowhole located at the left of the forehead. They can emit a click at around 230 decibels, considerably louder than a jet engine at around 150db. The Gray Whale is the whale that travels longer distances in its migration. Migration speeds vary between 2 and 7 miles per hour (3.2 to 11 kilometers per hour). Pods include females and their young, while males may roam solo or move from group to group. These toothed whales eat thousands of pounds of fish and squid—about one ton per day. Because sperm whales spend most of their time in deep waters, their diet consists of many larger species that also occupy deep ocean waters. For example, in right whale populations, migration seems to be undertaken mostly by pregnant females heading to warm waters to give birth, while both male and female humpback and gray whales seem to undertake seasonal migrations. Significant species that are known for their regular migrations include Killer Whales, Humpback Whales and Sperm Whales. This particular animal holds several records (apart from being the largest creature on Earth – the crown that goes to Blue Whale) that might come as a serious shock to anyone. Humpback whales can travel distances of 16,000 miles during these trips and will fast during their migration living off of stored energy in their fat reserves. CONSIDERATION OF DISTRIBUTION AND MIGRATION OF TOOTHED WHALES OFF THE PACIFIC COAST OF JAPAN BASED UPON AERIAL SIGHTING RECORD TOSHIO KASUYA* ABSTRACT The seasonal and annual fluctuation of the sperm whale, Baird's beaked whale, killer whale, the globicephalids, and the dolphins and porpoises in the past 11 years are discussed.