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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]
A hunt begins with a chase followed by a violent attack on the exhausted prey. Large whales often show signs of orca attack via tooth rake marks. [84] Pods of female sperm whales sometimes protect themselves by forming a protective circle around their calves with their flukes facing outwards, using them to repel the attackers. [90]
[17] [18] He noted that the whales were spread along 38.2 kilometres of coast and were separated by a mean distance of 3.5 km (sd=2.8, n=11). This spread in time and location was atypical, as usually whales mass strand at the same place and at the same time. At the time that Dr. Frantzis wrote the article he was unaware of several important ...
Bryde's whales have not been reported as taken or injured in fishing operations. They are sometimes killed or injured by ship strikes. Anthropogenic noise is an increasing concern for all rorquals, which communicate by low-frequency sounds. [8] These whales are protected off the US by the Marine Mammal Protection Act of 1972. [8]
Scientists suggest special blood vessels in the animals’ brains may protect them from pulses in their blood that would damage the brain.
Title Genre First broadcast Last broadcast 9-1-1: Absentia: Thriller: January 21, 2018: November 26, 2020 Adventures in Rainbow Country: Children's: January 28, 1995
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The gray whale (Eschrichtius robustus), [1] also known as the grey whale, [5] is a baleen whale that migrates between feeding and breeding grounds yearly. It reaches a length of 14.9 meters (49 ft), a weight of up to 41 tonnes (90,000 lb) and lives between 55 and 70 years, although one female was estimated to be 75–80 years of age.