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[1] [2] Common names include Japanese knotweed [2] and Asian knotweed. [3] It is native to East Asia in Japan , China and Korea . In North America and Europe , the species has successfully established itself in numerous habitats, and is classified as a pest and invasive species in several countries.
Anisakis share the common features of all nematodes: the vermiform body plan, round in cross section, and a lack of segmentation. The body cavity is reduced to a narrow pseudocoel. The mouth is located anteriorly and surrounded by projections used in feeding and sensation, with the anus slightly offset from the posterior.
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The various species of weasels include: northern river otter, American mink, long-tailed weasel, ermine or short-tailed weasel, fisher (in New England is known as a fisher cat), and the American marten (Known as pine marten in some areas of New England even though the pine marten is a separate species.).
Once a whale was sighted, whale boats were rowed from the shore, and if the whale was successfully harpooned and lanced to death, it was towed ashore, flensed (i.e., its blubber was cut off), and the blubber rendered into whale oil in cauldrons known as "try pots." Well into the 18th century, even when Nantucket sent out sailing vessels to fish ...
[3] [4] In 2018, Hvalur hf whalers killed a rare blue whale/fin whale hybrid. [5] Whaling was temporarily paused in Iceland between 2019 and 2021 as coronavirus restrictions, competition from subsidized Japanese whaling and increasing domestic whale watching tourism have hampered the industry, however the practice was resumed in June of 2022.
Whales are killed at sea often using explosive harpoons, [37] which puncture the skin of a whale and then explode inside its body. Anti-whaling groups say this method of hunting is cruel, particularly if carried out by inexperienced gunners, because a whale can take several minutes or even hours to die. [ 38 ]
The pygmy blue whale is the only one of the three identifiable subspecies to be found regularly in tropical waters. It occurs from the sub-Antarctic zone to the southern Indian Ocean and southwestern Pacific Ocean, breeding in the Indian and South Atlantic oceans, and travelling south to above the Antarctic to feed, [4] [7] although they very rarely cross the Antarctic Convergence.