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In whales, callosities are rough, calcified skin patches found on the heads of the three species of right whales. Callosities are a characteristic feature of the whale genus Eubalaena . Because they are found on the head of the whale and appear white against the dark background of the whale's skin, they allow the reliable identification of ...
The bottlenose dolphin is a toothed whale in the genus Tursiops.They are common, cosmopolitan members of the family Delphinidae, the family of oceanic dolphins. Molecular studies show the genus contains three species: the common bottlenose dolphin (Tursiops truncatus), the Indo-Pacific bottlenose dolphin (Tursiops aduncus), and Tamanend's bottlenose dolphin (Tursiops erebennus).
A researcher fires a biopsy dart at an orca.The dart will remove a small piece of the whale's skin and bounce harmlessly off the animal. Cetology (from Greek κῆτος, kētos, "whale"; and -λογία, -logia) or whalelore (also known as whaleology) is the branch of marine mammal science that studies the approximately eighty species of whales, dolphins, and porpoises in the scientific ...
This category contains articles about Cetacea, including whales, dolphins and porpoises. Subcategories This category has the following 21 subcategories, out of 21 total.
Large whales tend to lobtail by positioning themselves vertically downwards into the water and then slapping the surface by bending the tail stock. Dolphins, however, tend to remain horizontal, either on their belly or their back, and make the slap via a jerky whole body movement. All species are likely to slap several times in a single session.
A starving dolphin has a robust melon even if the rest of its body is emaciated. [1] The lipids in the melon tend to be of lower molecular weight and more saturated than the blubber . The melons of the Delphinidae (dolphins) and Physeteroidea (sperm whales) have a significant amount of wax ester, whereas those of the Phocoenidae (porpoises) and ...
A right whale of 10 m (33 ft) was sighted on January 28, 2014, making it the first record in the East China Sea in the 21st century. [121] One whale about the same size entered the port of Ushibuka, Kumamoto on March 28, 2014. [122] [123] In addition, possibly two different animals were seen off Bonin Islands on 12th [124] and 25th [125] March ...
Common minke whale Balaenoptera acutorostrata [7] Humpback whale Megaptera novaeangliae [8] Delphinidae [1] Killer whale (ᐋᕐᓗ, ᐊᕐᓗᒃ, ᐋᕐᓗᒃ, aarlu, arluk, aarluk) Orcinus orca [3] [9] Long-finned pilot whale [10] Atlantic white-sided dolphin (aarluarsuk) [11] White-beaked dolphin [12] Monodontidae [1]