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Type 1 orcas consist of seven haplotypes and include herring-eating orcas of Norway and Iceland and mackerel-eating orcas of the North Sea, [36] as well as seal-eating orcas off Norway. [4] [37] Type 2 orcas consist of two haplotypes, [36] and mainly feed on baleen whales.
Although resident orcas have never been observed to eat other marine mammals, they occasionally harass and kill porpoises and seals for no apparent reason. [105] Some dolphins recognize resident orcas as harmless and remain in the same area. [106] Orcas do consume seabirds but are more likely to kill and leave them uneaten.
In the Faroe Islands, whales mostly eat squid, but will also eat fish species such as greater argentine and blue whiting. However, Faroe whales do not seem to feed on cod, herring, or mackerel, even when they are abundant. [20] Pilot whales generally take several breaths before diving for a few minutes. Feeding dives may last over ten minutes.
Northern resident orcas, also known as northern resident killer whales (NRKW), are one of four separate, non-interbreeding communities of the exclusively fish-eating ecotype of orca in the northeast portion of the North Pacific Ocean.
Drone videos of gray whales off Oregon have revealed new details about how the marine mammals find food. The findings were described in studies this summer. Drone video of gray whales offers new ...
“As smart, top predators, killer whales can rapidly learn new hunting techniques on their own or from others, so monitoring and understanding the behaviors used here and by other killer whales ...
The research vessel Noctiluca of the Northwest Fisheries Science Center in close proximity to an orca. The southern resident orcas, also known as the southern resident killer whales (SRKW), are the smallest of four communities of the exclusively fish-eating ecotype of orca in the northeast Pacific Ocean.
Dave Phillips was one of the numerous whale experts who helped the orca star of Free Willy return to the wild. Now, Phillips is working to help two other whales in captivity at a closed marine ...