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The gray whale (Eschrichtius robustus), [1] also known as the grey whale, [5] is a baleen whale that migrates between feeding and breeding grounds yearly. It reaches a length of 14.9 meters (49 ft), a weight of up to 41 tonnes (90,000 lb) and lives between 55 and 70 years, although one female was estimated to be 75–80 years of age.
Fossils of Eschrichtiidae have been found in all major oceanic basins in the Northern Hemisphere, and the family is believed το date back to the Late Miocene. [9] Today, gray whales are only present in the northern Pacific, but a population was also present in the northern Atlantic before being driven to extinction by European whalers three centuries ago.
This is far from where gray whales are typically found. Quick facts about gray whales. According to NOAA Fisheries, gray whales: Weight: About 90,000 pounds. Length: 42 to 49 feet.
Growing to about 49 feet, gray whales are among the top 10 largest baleen cetaceans. There are an estimated 26,000 in eastern North Pacific Ocean. Rare gray whale seen off Nantucket is good and ...
Scientists believe the gray whale seen off Florida in December is the same one spotted March 1 off Massachusetts. ... The eastern North Pacific group are found along the west coast of North America.
Eschrichtius is a genus of baleen whale containing two species: the gray whale (E. robustus) and the extinct Akishima whale (E. akishimaensis). [2] References
Gray whales, which lack a dorsal fin, have mottled grey and white skin, a dorsal hump and pronounced ridges, are usually found in the North Pacific Ocean.
Unprecedented numbers of gray whales are being spotted in San Francisco Bay, and nobody really knows why. Experts only have educated guesses about the prevalence of porpoises, dolphins and ...