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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.
Eschrichtiidae or the gray whales is a family of baleen whale (Parvorder Mysticeti) with a single extant species, the gray whale (Eschrichtius robustus), as well as four described fossil genera: Archaeschrichtius (), Glaucobalaena and Eschrichtioides from Italy, [1] [2] and Gricetoides from the Pliocene of North Carolina. [3]
Eschrichtius is a genus of baleen whale containing two species: the gray whale (E. robustus) and the extinct Akishima whale (E. akishimaensis). [2] References
A segment of the gray whale population is listed as endangered under the Endangered Species Act. The entire species once faced a risk of extinction because of commercial hunting. Once common ...
The gray whale population experienced an unusual mortality event from 2019 to 2023, which scientists believe was caused by a decrease in available prey in the northern Arctic seas, ...
Genus Megaptera Gray, 1846 – one species Common name Scientific name Status Population Distribution Size Picture Humpback whale: Megaptera novaeangliae Borowski, 1781: LC: 84,000 25–30 t (28–33 short tons) Genus Eschrichtius Gray, 1864 – one species Common name Scientific name Status Population Distribution Size Picture Gray whale
The story of the gray whales might be a little more ominous. As with the humpbacks, there is no historical record of these singing whales having any major historical presence in San Francisco Bay ...
The second gray whale, which was captured in 1971 from the same lagoon, was named Gigi II and was released a year later after becoming too big. [158] The last gray whale, J.J., beached itself in Marina del Rey, California, where it was rushed to SeaWorld San Diego and, after 14 months, was released because it got too big to take care of ...