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These orcas also prey on Patagonian toothfish. 65 individuals have been documented in this area. [51] Off South Africa, a distinctive "flat-tooth" morphotype exists and preys on sharks. [52] [53] A pair of male orcas, Port and Starboard, have become well known for hunting great whites and other sharks off the South African coast. [54]
As of February 2019, captive orcas reside at facilities in North and South America, Europe and Asia. The first North Eastern Pacific orca, Wanda, was captured in November 1961 by a collecting crew from Marineland of the Pacific, and over the next 15 years, around 60 to 70 orcas were taken from Pacific waters for this purpose. [2]
Orcas also prey on larger species such as sperm whales, grey whales, humpback whales and minke whales. [ 83 ] [ 39 ] On three separate occasions in 2019 orcas were recorded to have killed blue whales off the south coast of Western Australia, including an estimated 18–22-meter (59–72 ft) individual. [ 88 ]
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"Social Organization and Genealogy of Resident Killer Whales (Orcinus orca) in the Coastal Waters of British Columbia and Washington State". Report of the International Whaling Commission (Special Issue 12). Cambridge: 383– 405. ISSN 0255-2760. Colby, Jason M. (2018). Orca: how we came to know and love the ocean's greatest predator.
Tahlequah, the Southern Resident orca who carried her dead calf for 1,000 miles over 17 days in 2018, is mourning the loss of another newborn, raising concerns about her health.
The hunting of baleen whales in the vicinity of Antarctica began around 1904, with the establishment of a whaling station on South Georgia. Hunting of blue whales was banned in 1966, and finally brought under control in the 1970s. By that time the blue whale population had been reduced to 0.15% of its original size. [3]
The whales got stuck in a silted estuary making it impossible to use equipment to reach them. "We are waiting for the waters to come," TASS state news agency cited the region's emergency minister ...