killer whale - meaning and definition. What is killer whale
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What (who) is killer whale - definition

SPECIES IN THE OCEANIC DOLPHIN FAMILY
Orcinus orca; O. orca; Orca Whales; Killer whales; Orca Whale; Whale, killer; Orca whale; Killer Whales; San Juan Orcas; Orcas; Dwarf killer whale; Killer Whale; Whale Killer; Orca (Cetacean); Killer Whale population; Orca gladiator; Killer-whale; Killer Whales in the Kwakiutl Culture; Killer whales In native culture; Killer Whales In Native Culture; Killer Whales in Relation to Culture; Hunting behavior of killer whales; Orcas in mythology; Killer whales in mythology; Bigg's orca; Cultural depictions of orcas; Killer whale; Delphinus orca; Orque
  • South Georgia]]
  • alt=Killer whale wrapped in white cloth on a boat, surrounded by four people. A board braces its dorsal fin.
  • alt=Jade carving of a killer whale with exaggerated fins and bared teeth. Its body and fins are engraved with nested ovals and other patterns.
  • strap-toothed beaked whale]]
  • alt=A killer whale swims alongside a whaling boat, with a smaller whale in between. Two men are standing, the harpooner in the bow and a steersman on the aft rudder, while four oarsmen are seated.
  • Variations in Antarctic orcas
  • Orcas swimming in close synchronization to create a wave to wash the seal off the floe
  • Different angle views of a typical female orca's appearance
  • alt=A killer whale rises vertically above the pool surface, except its tail, with a trainer standing on its nose.
  • alt=A killer whale leaping out of the water is about to land on its back.
  • alt=A killer whale bursts forward out of the water. Its head is just starting to point downward, and is about a body width above the surface.
  • Differences of dorsal fins between males (front) and females (background)
  • An orca plays with a ball of ice, soon after a researcher threw a snowball at the whale.
  • Orca beaching to capture sea lion along [[Valdes Peninsula]]
  • A pair of orcas in the [[Pacific Northwest]]
  • alt=Killer whale forges through small ice floes. Its back is dark from the head to just behind the dorsal fin, where there is a light grey saddle patch. Behind this, and on its lower side, its skin is an intermediate shade.
  • alt=Killer whale silhouette, with two projections above shown above the blowhole.
  • Ingrid Visser]]'s research team filming orcas in New Zealand

killer whale         
(killer whales)
A killer whale is a type of black and white whale.
N-COUNT
killer whale         
¦ noun a large toothed whale with distinctive black-and-white markings and a prominent dorsal fin. [Orcinus orca.]
ORCA         
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Wikipedia

Orca

The orca or killer whale (Orcinus orca) is a toothed whale belonging to the oceanic dolphin family, of which it is the largest member. It is the only extant species in the genus Orcinus and is recognizable by its black-and-white patterned body. A cosmopolitan species, orcas can be found in all of the world's oceans in a variety of marine environments, from Arctic and Antarctic regions to tropical seas.

Orcas have a diverse diet, although individual populations often specialize in particular types of prey. Some feed exclusively on fish, while others hunt marine mammals such as seals and other species of dolphin. They have been known to attack baleen whale calves, and even adult whales. Orcas are apex predators, as they have no natural predators. They are highly social; some populations are composed of very stable matrilineal family groups (pods) which are the most stable of any animal species. Their sophisticated hunting techniques and vocal behaviours, which are often specific to a particular group and passed across generations, have been described as manifestations of animal culture.

The International Union for Conservation of Nature assesses the orca's conservation status as data deficient because of the likelihood that two or more orca types are separate species. Some local populations are considered threatened or endangered due to prey depletion, habitat loss, pollution (by PCBs), capture for marine mammal parks, and conflicts with human fisheries. In late 2005, the southern resident orcas, which swim in British Columbia and Washington waters, were placed on the U.S. Endangered Species list.

Wild orcas are not considered a threat to humans, and no fatal attack on humans has ever been documented. There have been cases of captive orcas killing or injuring their handlers at marine theme parks. Orcas feature strongly in the mythologies of indigenous cultures, and their reputation in different cultures ranges from being the souls of humans to merciless killers.

Examples of use of killer whale
1. "This is the first time we came across a white killer whale," he said.
2. A rare white killer whale was spotted by federal scientists in late February off Alaska.
3. The white killer whale spotted in Alaska‘s Aleutian Islands sent researchers and the ship‘s crew scrambling for their cameras.
4. Umoonasaurus was a rhomaleosaurid, a kind of plesiosaur that was the "killer whale equivalent of the Jurassic" period, Kear said.
5. Intrepid holidaymakers can also opt for a skydive in Florida, or a killer whale safari off Vancouver Island in Canada.