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The orca (Orcinus orca), or killer whale, is a toothed whale and the largest member of the oceanic dolphin family. It is the only extant species in the genus Orcinus and is recognizable by its black-and-white patterned body. A cosmopolitan species, it is found in diverse marine environments, from Arctic to Antarctic regions to tropical seas.
Orcas or killer whales have a cosmopolitan distribution and several distinct populations or types have been documented or suggested. Three to five types of orcas may be distinct enough to be considered different races , [ 1 ] subspecies , or possibly even species [ 2 ] (see Species problem ).
Offshore orcas, first described in 1979, are primarily found more than 10 miles (16 km) from shore. Just over 280 offshore orcas are known from the Eastern North Pacific, primarily occurring off the coast of British Columbia.
The closure of a marine zoo in the south of France has sparked intense debate over the future of its inhabitants, including two beloved orcas. Marineland Antibes, near Cannes, closed for good on ...
A study examining 35 Northwest orcas found key genetic alterations that caused changes to normal physiological functions. [120] These genetic level interferences, combined with the varied effects of PCBs at other physiological levels, suggest these contaminants may be partially responsible for declines in orca populations.
Tahlequah, a mother orca, became known around the world in 2018 for the heartbreaking act of carrying her dead calf for more than 1,000 miles (1,600 kilometers) over 17 days. Now, she appears to ...
Northern resident orcas, also known as northern resident killer whales ... Was quickly found to be a dying matriline due to the only female and matriarch, W3 ...
This is the first time orcas have been documented using this precision feeding technique in this region. [11] Starboard was first filmed via drone killing a great white in May 2022 around Mossel Bay, alongside four other orcas [12] – this was the first time ever this predation has been filmed. After the attack, white sharks in the area fled ...