(n. pl.) An order of marine mammals, including the whales. Like ordinary mammals they breathe by means of lungs, and bring forth living young which they suckle for some time. The anterior limbs are changed to paddles; the tail flukes are horizontal. There are two living suborders:
Example Sentences:
(1) Among mammals, Cetacea form a subgroup, in that their volumetric data fit an isometric model better than an allometric model.
(2) Thin-layer isoelectric focusing was applied to the identification of whale (Cetacea) species by using water-soluble sarcoplasmic proteins of skeletal muscles.
(3) Comparative ontogenetic investigation of cytoarchitectonics of the cerebral neocortex has been performed in Cetacea and Primates using paraffin frontal and sagittal cerebral sections stained after Nissl.
(4) As demonstrates the investigation of the blood system in the whale (Balaenoptera edeni) performed by means of the macropreparation of corrosive casts and sawcuts, in this species, as in other Cetacea, there is a well developed complex of the arterial rete mirabile, owing to which the brain is supplied with blood.
(5) Completely aquatic marine mammals of the order Cetacea such as whales and dolphins have a reduced or absent olfactory system and neither a vomeronasal organ nor an accessory olfactory bulb.
(6) (Trematoda : Campulidae) a bile duct parasite of the striped dolphin, Stenella coeruleoalba (Meyen, 1833) (Cetacea : Delphinidae), from the Mediterranean Sea.
(7) The non-deciduate placenta in Cetacea that take their origin from ancient carnivores (from procreodonts) demonstrates, in its turn, that the non-deciduate placenta was the initial form.
(8) Similar agranular character of the cerebral cortex differentiation is maintained during the whole subsequent ontogenesis in the Cetacea (heterogenetic type of the neocortex after Brodman).
(9) The above sequence identities and differences reflect the close taxonomic relationship of these five species of Cetacea.
(10) Peculiarities of the cerebral cortical plate differentiation in the Cetacea (absence of the internal granular layer IV) is determined at the stage of stratification.
(11) Perhaps, a comparatively more simple initial architectonics of the Cetacea brain limited the level of their functional possibilities, the latter is comparable only with anthropoid apes.
(12) Although the vomeronasal organ is present in most mammals, it is absent in Cetacea, other fully adapted aquatic species and certain Chiroptera and Old World monkeys-except in the foetal stage.
(13) Absence of the layer IV in the cerebral neocortex determines some other principles in the spatial organization of the cortical-subcortical and in the intracortical connections in the Cetacea brain.
(14) The non-deciduate placenta is especially characteristic for lower primates and Cetacea.
(15) It has been shown, moreover, that among species with convoluted brains, marine mammals (Cetacea) form a subgroup in that the cerebrocortical surface in these animals is more folded than in terrestrial mammals of similar brain size.
(16) Neurohypophysial hormone-Neurophysin complexes have been prepared from posterior pituitary glands of Artiodactyla (ox, sheep, pig), Perissodactyla (horse) and Cetacea (whale), by fractionated salt precipitation.
(17) Jacobson's organ of the vomeronasal system is found in every order of mammals with the possible exception of Cetacea.
(18) At two first stages of the prenatal ontogenesis (formation of the cortical plate and its differentiation into layers) there is not any principle differences between the Cetacea and Primates.
(19) Systemic viral disease has not previously been documented in Cetacea.
(20) The composition and contents of acidic glycolipids in the kidney of a striped dolphin (Stenella coeruleoalba, the order Cetacea, whales) were determined.
Whale
Definition:
(n.) Any aquatic mammal of the order Cetacea, especially any one of the large species, some of which become nearly one hundred feet long. Whales are hunted chiefly for their oil and baleen, or whalebone.
Example Sentences:
(1) A sperm whale myoglobin gene containing multiple unique restriction sites has been constructed in pUC 18 by sequential assembly of chemically synthesized oligonucleotide fragments.
(2) Japan needs to sell whale meat at a competitive price, similar to that of pork or chicken, and to do that it needs to increase its annual catch."
(3) Australia is hoping to put a permanent end to Japan's annual slaughter of hundreds of whales in the Southern Ocean, in a landmark legal challenge that begins this week.
(4) Earlier today Liz Sandeman, a marine mammal medic who went out in a lifeboat to examine the whale, said: "It looks quite healthy and quite relaxed.
(5) If anything, we empathise with the whales more than the humans because they're treated like animals.
(6) In 2011, a young sperm whale was found floating dead off the Greek island of Mykonos.
(7) At higher pH, this signal changes in a way different from that observed for whale myoglobin.
(8) Campbell said that if all signatories to the convention killed as many minke whales as Japan does, then more than 83,000 would be slaughtered in the Southern Ocean every year.
(9) Crystals have been grown of "sperm whale" myoglobin produced in Escherichia coli from a synthetic gene and the structure has been solved to 1.9 A resolution.
(10) Next year they will target 50 fin whales, 50 endangered humpbacks, and another 925 minkes.
(11) Crystalline myoglobin was isolated from the skeletal muscle of the finback whale and fractionated, in its cyanmet form, into nine components (I-IX) by chromatography on CM-cellulose.
(12) While in detention in Tokyo he indicated he no longer wished to take part in anti-whaling activities.
(13) Between June 20 and the end of August, whalers in Wadaura and three other villages will be permitted to catch 66 Baird's beaked whales that, because of their relatively small size, are not covered by the 1986 International Whaling Commission's ban on commercial hunting.
(14) Although Migaloo’s rough itinerary can be figured out, it is still a lucky whale watcher who spots him, Oskar Peterson, from the White Whale Research Centre , told Guardian Australia.
(15) Japan should undertake some DNA research in Japanese fish markets, where endangered whales - including orcas and humpbacks - are being sold as minke whales.
(16) The Institute of Cetacean Research, a quasi-governmental body that oversees the hunts, had hoped to use sales from the meat to cover the costs of the whaling fleet's expeditions, she said.
(17) 3.06pm BST More scientific reaction Ken Collins, a senior research fellow at the University of Southampton, said there was no justification for using lethal methods for researching whales.
(18) Ben Lewis (@ben_lewis10) The 'vibe' of the #ICJ decision so far- #Whaling can be done for scientific research... but Japan doing on too big a scale.
(19) Occurrence of BaP adducts in the brain of three whales of this population coincides with the high incidence of tumours.
(20) Only one bryde's whale sample was available for investigation.