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The family Balaenidae, the right whales, contains two genera and four species. All right whales have no ventral grooves; a distinctive head shape with a strongly arched, narrow rostrum, bowed lower jaw; lower lips that enfold the sides and front of the rostrum; and long, narrow, elastic baleen plates (up to nine times longer than wide) with fine baleen fringes.
The sperm whale or cachalot (Physeter macrocephalus) is the largest of the toothed whales and the largest toothed predator.It is the only living member of the genus Physeter and one of three extant species in the sperm whale family, along with the pygmy sperm whale and dwarf sperm whale of the genus Kogia.
The sei whale, or Rudolph's whale (Balaenoptera borealis), lives mainly in the North Atlantic and avoids enclosed seas, [22] but occasionally makes occasional incursions into the Mediterranean, although this is considered exceptional [12] and restricted to Spain and France. [14] The sei whale is classified as "endangered" on the IUCN Red List. [23]
A stranding is when a cetacean leaves the water to lie on a beach. In some cases, groups of whales strand together. The best known are mass strandings of pilot whales and sperm whales. Stranded cetaceans usually die, because their as much as 90 metric tons (99 short tons) body weight compresses their lungs or breaks their ribs. Smaller whales ...
Sei whale Balaenoptera borealis [5] Blue whale (ᐊᕐᕕᖅ ᓂᐊᖁᕐᓗᖕᓂᖅᓴᖅ, ᐃᐸᒃ, arviq niaqurlungniqsaq, ipak) Balaenoptera musculus [3] [6] Common minke whale Balaenoptera acutorostrata [7] Humpback whale Megaptera novaeangliae [8] Delphinidae [1] Killer whale (ᐋᕐᓗ, ᐊᕐᓗᒃ, ᐋᕐᓗᒃ, aarlu, arluk, aarluk ...
The blue whale is the largest living animal in the world in the present epoch. Its summer range extends from the east of Canada to Svalbard, and this range is potentially occupied by two separate groups. [10] Like other rorquals, blue whales appear to migrate further south during the winter.
Archaeoceti ("ancient whales"), or Zeuglodontes in older literature, is a paraphyletic group of primitive cetaceans that lived from the Early Eocene to the late Oligocene 1] Representing the earliest cetacean radiation, they include the initial amphibious stages in cetacean evolution, thus are the ancestors of both modern cetacean suborders ...
Whale is the common name for various marine mammals of the infraorder Cetacea. The term whale sometimes refers to all cetaceans, but more often it excludes dolphins and porpoises. The term whale sometimes refers to all cetaceans, but more often it excludes dolphins and porpoises.