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Orcas (or killer whales) are large, powerful aquatic apex predators. There have been incidents where orcas were perceived to attack humans in the wild, but such attacks are less common than those by captive orcas. [1] In captivity, there have been several non-fatal and four fatal attacks on humans since the 1970s. [2]
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 stoat surplus killing chipmunks (Ernest Thompson Seton, 1909) Multiple sheep killed by a cougar. Surplus killing, also known as excessive killing, henhouse syndrome, [1] [2] or overkill, [3] is a common behavior exhibited by predators, in which they kill more prey than they can immediately eat and then they either cache or abandon the remainder.
The orcas interacted with the yacht for 45 minutes, bumping against the blade of the rudder, causing damage and leaks. No humans were harmed and the vessel sank near the entrance to the port of Tanger-Med. [14] [7] On 12 May 2024, the Spanish yacht Alboran Cognac was attacked by orcas and holed. Both people on board were rescued by a tanker.
A pod of orcas moving through the inland waters of Alaska. The Orca Welfare and Safety Act is a bill passed in the U.S. state of California in 2016. The bill phases out the holding of killer whales in captivity and establishes standards for treatment of all remaining captive orcas in zoos.
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 ...
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In these systems, humans mainly eat predatory fish and have a fractional trophic level of 4.65 and 4.5, respectively, which in Roopnarine's view makes those humans apex predators. [ b ] [ 30 ] In 2021, Miki Ben-Dor and colleagues compared human biology to that of animals at various trophic levels.