(n.) Plates or blades of "whalebone," from two to twelve feet long, and sometimes a foot wide, which in certain whales (Balaenoidea) are attached side by side along the upper jaw, and form a fringelike sieve by which the food is retained in the mouth.
Example Sentences:
(1) The abnormal mobility at the fracture site probably caused irregular baleen stowage within the oral cavity, leading to breakage of many baleen plates and extensive ulceration of the tongue and lips.
(2) This paper studies the delay equation chik + 1 = lambda chik + F(chik - beta), which has been employed as a model of baleen whale population dynamics.
(3) An aqueous abstract of the corpora lutea of the two baleen whales contained significant amounts of relaxin-like activity as determined by a mouse bioassay and by cross-reactivity with anti-pig relaxin antibodies.
(4) His team has seen humpbacks “lunge feeding”, where the whales rise up under giant shoals and take hundreds of thousands of pounds of fish into their mouths in one gulp, filtering out the seawater through their baleen grills and swallowing the fish.
(5) Twenty-eight samples consisting of 4 species (10 samples) of baleen whales (Mysticeti) and 8 species (18 samples) of toothed whales (Odontoceti) were analyzed.
(6) The electrophoretic profiles were species-specific on the 4 toothed whale species that did not have a marked intra-species difference, and all 4 baleen whale species.
(7) The development of the olfactory and terminalis systems was studied in tissue from eight embryonic and early fetal specimens belonging to three species of baleen whales.
(8) Homologous loci could indeed be amplified from a diverse range of whales, including all toothed (Odontoceti) and baleen whales (Mysticeti) tested.
(9) Having inspected the carcass and its vast curtain of baleen with which it had once strained a ton of zooplankton a day, Evelyn marvelled that "an Animal of so greate a bulk, should be nourished onely by slime".
(10) The hard keratins comprising wool, hairs, quills, hooves, horns, nails and baleen contain partly alpha-helical polypeptides which show homology with epidermal polypeptides only in the helical regions.
(11) This suggests the interesting possibility of actively encouraging the population recovery of three species of large baleen whales.
(12) In contrast to toothed whales, baleen whales, particularly in these ontogenetic stages, are much less specialized in nasal organ morphology.
(13) The sei whale belongs to the suborder baleen whales of the order Cetacea.
Rorqual
Definition:
(n.) A very large North Atlantic whalebone whale (Physalus antiquorum, or Balaenoptera physalus). It has a dorsal fin, and strong longitudinal folds on the throat and belly. Called also razorback.
Example Sentences:
(1) In light of previous descriptions of Crassicauda infections in balaenopterids, this implied that C. boopis should at present be considered a renal parasite of fin whales, and perhaps other rorquals, throughout the world's oceans.
(2) The arms of the Y pass back and are superficially indicated in all rorqual whales as a ridge running parallel to the rami of the mandibles.
(3) The functional properties of haemoglobin from the Lesser Rorqual whale (Balaenoptera acutorostrata) have been characterized as a function of the heterotropic effector concentrations and temperature.
(4) Pig RNAase also has carbohydrate attached to asparagine-76 and is identical with lesser-rorqual RNAase in residues 76-98.
(5) Lesser-rorqual pancreatic RNAase is partially glycosidated (30%) at asparagine-76 in an Asn-Ser-Thr sequence (residues 76-78).
(6) The mandibular symphysis of rorqual whales, whales of the genera Megaptera and Balaenoptera, is characterized by a Y-shaped fibrocartilage structure that lies in the substance of the muscular ventral pouch of these animals.
(7) Pancreatic RNAase (ribonuclease) from the pike whale (lesser rorqual, Balaenoptera acutorostrata) was isolated by affinity chromatography.
(8) The oxygen binding properties of the hemoglobin from the Lesser Rorqual, Balaenoptera acutorostrata, has been investigated with respect to the possible effects of organic phosphates on gas transport in arctic environments.
(9) In 2013, Norway caught 590 rorqual whales, far higher than the previous year.