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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.
The upper value, 5.0, is unusual, even for large fish, [7] though it occurs in apex predators of marine mammals, such as polar bears and killer whales. [8] As a point of contrast, humans have a mean trophic level of about 2.21, about the same as a pig or an anchovy.
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.
Type A or Antarctic orcas look like a "typical" orca, a large, black-and-white form with a medium-sized white eye patch, living in open water and feeding mostly on minke whales. [ 2 ] [ 4 ] Type B1 or pack ice orcas are smaller than type A. [ 4 ] It has a large white eye patch.
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 ...
Articles relating to orcas (Orcinus orca, killer whales), toothed whales that are the largest members of the oceanic dolphin family. It is the only extant species in the genus Orcinus . Orcas are recognizable by their black-and-white patterned body.
Overall, the Arctic foxes hearing is less sensitive than the dog and the kit fox. The Arctic fox and the kit fox have a low upper-frequency limit compared to the domestic dog and other carnivores. [29] The Arctic fox can easily hear lemmings burrowing under 4-5 inches of snow. [30]
Apparently orcas, also known as killer whales, love them too. They're not often caught in the act, but amateur photographer Chris Wilton was able to take this remarkable video of orcas Killer ...