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High-intensity sonar used by the Navy disturbs orcas along with other marine mammals. [171] Orcas are popular with whale watchers, which may stress the whales and alter their behaviour, particularly if boats approach too closely or block their lines of travel. [172]
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 ).
Orcinus is a genus of Delphinidae, the family of carnivorous marine mammals known as dolphins.It includes the largest delphinid species, Orcinus orca, known as the orca or killer whale.
Despite their underwater habitat, whales are mammals. Mammals are not solely terrestrial; some, including whales and dolphins, are fully aquatic the University of Michigan Museum of Zoology reports.
Also known as "killer whales," orcas — the largest members of the dolphin or "toothed ... "Other killer whales may focus on marine mammals — seals, porpoises, etc — or fish. This particular ...
A killer whale was spotted balancing a salmon on its head. It’s not clear what the behavior means, but orcas were observed doing the same thing in the 1980s. ... according to the Marine Mammal ...
A few toothed whales, such as some orcas, feed on mammals such as pinnipeds and other whales. [ 15 ] [ 16 ] Toothed whales have well-developed senses – their eyesight and hearing are adapted for both air and water, and they have advanced sonar capabilities using their melon .
After helping Free Willy taste freedom, Dave Phillips is working to give two other orcas a life outside captivity, Phillips, a director of the International Marine Mammal Project at Earth Island ...