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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 herring population is not completely depleted by orcas because they never eat the whole herring ball during the feeding phase of carousel feeding. [2] The herring that are not consumed are able to escape from the orcas. This means the orcas do not completely deplete their food source and potentially the strongest herring will survive the ...
The release of iron from whale feces encourages the growth of phytoplankton in the sea, [5] which not only benefits the marine food chain, but also sequesters carbon for long periods of time. [5] When phytoplankton, which is not consumed in its lifetime, perishes, it descends through the euphotic zone and settles
An orca was seen balancing a salmon on its head in coastal waters in Washington state. Orcas were previously observed doing the same thing in the 1980s. It’s not clear what the behavior means ...
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 ).
In travel news this week: When wild animals encounter people on the go, Europe’s best long-distance hiking and a dramatic emergency plane landing.
Moby Doll did not eat for nearly two months after being captured. Initially, aquarium staff believed the orca would eat salmon and herring, but he did not eat the salmon that was cautiously let down into the dock on a line, with the idea of keeping the staff distant and safe from attack. [18]
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