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Humpback whale breach sequence. A breach or a lunge is a leap out of the water, also known as cresting. The distinction between the two is fairly arbitrary: cetacean researcher Hal Whitehead defines a breach as any leap in which at least 40% of the animal's body clears the water, and a lunge as a leap with less than 40% clearance. [2]
The killer whales regularly demonstrate their competence by chasing seals up shelving gravel beaches, up to the edge of the water. The pursuing whales are occasionally partially thrust out of the sea by a combination of their own impetus and retreating water, and have to wait for the next wave to re-float them and carry them back to sea. [12]
Pilot whales' long, sickle-shaped flippers and tail stocks are flattened from side to side. [4] Male long-finned pilot whales develop more circular melons than females, [4] although this does not seem to be the case for short-finned pilot whales off the Pacific coast of Japan. [12] A pilot whale spyhopping
For a supposed spy, Hvaldimir was anything but covert. The white beluga whale had appeared regularly along the coast of Norway since it was first spotted in the country’s north in April 2019 ...
The tame beluga whale approached Norwegian fishermen in 2019, wearing a harness, leading to speculation that it was an escaped Russian "spy whale" [Norwegian Orca Survey]
Sperm whales have the largest brain mass of any animal on Earth, averaging 8,000 cm 3 (490 in 3) and 7.8 kg (17 lb) in mature males. [23] The brain to body mass ratio in some odontocetes, such as belugas and narwhals, is second only to humans. [24] In some whales, however, it is less than half that of humans: 0.9% versus 2.1%. [citation needed]
A harness-wearing beluga whale that may have been trained by the Russian navy has reappeared off Sweden's coast.. The "spy" whale was first reported in April 2019, when he was discovered near ...
OneWhale, one of the organisations involved in Hvaldimir's care and observations, stated that other captive and human-conditioned beluga whales from around the world could be rescued and potentially joined with Hvaldimir, with the whales possibly being released further north to the waters off Svalbard, where a group of wild belugas is known to ...