This is a list of individual cetaceans from real life or fiction, arranged roughly taxonomically. Oceanic dolphins are the members of the family Delphinidae. For the most part toothed whales are smaller than their baleen whale counterparts with the largest of the toothed whale family, the sperm whale, growing to lengths of up to 67 ft. and weighing over 45 tons. This small toothed whale weighs between 400 to 600 lbs on average. Toothed whales have lost their sense of smell, as well as their saliva glands. They have a small geographic range and are mainly found in the waters along the east coast of South America. Weighing at about 173 tons, the Blue Whale can grow to be about 98 feet (30 meters). Toothed whales have lost their sense of smell, as well as their saliva glands. These whales are found worldwide. Their weight ranges from 13-28 tons. The only toothed whale longer than 13 metres is the sperm whale (they can measure up to 18 metres). 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Odontceti (toothed whales or odontocetes – approximately 75 species) Within each of these suborders are individual groups or ‘families.’ Each family has a scientific name and a common name. The largest suborder, Mysticeti (baleen whales) are characterized by baleen, a sieve-like structure in the upper jaw made of keratin, which it uses to filter planktonfrom the water. There are only 14 baleen whale species and they are generally larger than the 76 species of toothed whales – except for the mighty sperm whale, the largest toothed whale. There is great disagreement among taxonomists as to what criteria, if any, constitutes a separate species, sub-species, race or variation. The Delphinidae are characterized by having distinct beaks (unlike the Phocoenidae), two or more fused cervical vertebrae and 20 or more pairs of teeth in their upper jaws. The toothed whales form an extraordinary group of marine mammals, ranging in size over several orders of magnitude from the smallest harbour porpoises in the Black Sea (1.3 m long and 45 kg) to the cosmo-politan sperm whale (18 m long, 57,000 kg). The spade-toothed whale was seen for the first time after a mother and her male calf died on a New Zealand beach.  However, these were demoted to subspecies in 1988. 2. A beaked whale is any of at least 22 species of whale in the family Ziphiidae. Unlike the other great whales on the endangered species list, the sperm whale is a toothed whale. One survey estimated a population of about 11,000 in the eastern Pacific, There is not enough data to place finless porpoises on the endangered species list, There are no good estimates of the animals' abundance. Living in temperate waters, the Spade-toothed whales may be threatened by climate change, causing ocean warming, which in turn leads to reduction and modification of their natural range. Males average around 53 feet (16 m) but the largest can reach up to 66 feet (20 m). The Sperm whale is named so because of the Spermaceti organ which occupies most of its huge head. Females travel and live in groups, while male sperm whales are solitary animals except for mating. A few toothed whale species may only have a small handful of teeth that appear to be fairly useless when it comes to their survival. Pilot whales -- small, toothed whales with a bulging forehead, a short snout and pointed flippers -- are sociable creatures, and live in groups of dozens, hundreds or even thousands. Baleen whales have two-holed blowholes, while toothed whales have one-holed blowholes. One of the main features of their ovarian cycles is the length of the luteal phase (see Harrison, 1969). Odontocetes: the toothed whales: Distribution, Behaviour, Migration and Threats The conservation status of the toothed whales has worsened dramatically since 2001. Fandom Apps Take your favorite fandoms with you and never miss a beat. The family Lipotidae contains only the baiji. These dolphins are known for their long beak in relation to their relatively small body size. Toothed whales include sperm whales, as well as dolphins , porpoises, and orcas, among others. Their size averages at about 46 feet. The most obvious visible differences between the two groups are that porpoises have a less pronounced beak, and have spade-shaped teeth as opposed to conical.. The world's 82 types of whales are mainly divided into two groups deriving from their food and eating habits, and consequently, their anatomy. An analysis of more than 27,000 sounds from deep-diving pilot whales suggests that these whales use tiny volumes of air to produce powerful clicks. They include the largest animal that has ever lived, the blue whale. Of the two living groups, one of them, the toothed whales, or odontocetes, retains teeth. There are only 14 baleen whale species and they are generally larger than the 76 species of toothed whales – except for the mighty sperm whale, the largest toothed whale. Porpoises, divided into seven species, live in all oceans, mostly near the shore. Below we will discuss ten whale species, both Baleen and toothed, starting from largest to smallest. Unlike baleen whales, toothed whales have only the one blowhole and, of course, teeth. Baleen whales are characterized by having baleen plates for filter feeding and two blowholes. The list is organized taxonomically into parvorders, superfamilies when applicable, families, subfamilies when applicable, genus, and then species. The flippers are small, rounded and tend to curl up at the ends in adulthood. There are about 65 different species of toothed whales. The smallest species is only about 1 meter long, and the largest is more than 20 meters. "Phylogenetic relationships of artiodactyls and cetaceans as deduced from the comparison of cytochrome b and 12S RNA mitochondrial sequences", "Relationships of Cetacea -Artiodactyla- Among Mammals: Increased Taxon Sampling Alters Interpretations of Key Fossils and Character Evolution", "The IUCN Red List of Threatened Species", "The Ultimate Mouthful: Lunge Feeding in Rorqual Whales", "List of Marine Mammal Species and Subspecies", "What's the difference between dolphins and porpoises? It was the most commonly encountered species during preliminary beach surveys undertaken on, The most recent estimate for the North Pacific and Bering Sea is 1,186,000, The total number of sperm whales throughout the world is unknown. Toothed whales, including all dolphins and porpoises, have teeth, only one blowhole (baleen whales have two) and are generally smaller than most baleen whales. Among the 72 toothed whale species in existence (and among all whale species), the dwarf sperm whale is the smallest with a length of nearly nine feet. It belongs to the killer whale or orca (Orcinus orca), a toothed whale of the oceanic dolphin family. Toothed whales, including all dolphins and porpoises, have teeth, only one blowhole (baleen whales have two) and are generally smaller than most baleen whales. , The La Plata dolphin is the only species of the family Pontoporiidae and genus Pontoporia. , The baleen whales, also called whalebone whales or great whales, form the parvorder Mysticeti. First, it’s said that many sailors spotted orcas preying on other whales and larger marine species, garnering them the nickname “whale killer.” Over time, this namesake morphed into “killer whale.” Except for the Sperm Whale, most toothed whales are smaller than the baleen whales. The following is a list of currently-existing, or in the jargon of taxonomy, 'extant' species of the infraorder cetacea (for extinct cetacean species, see the list of extinct cetaceans). The word "whale" may bring to mind the image of a blue whale, the largest animal ever to have lived. Conservation status codes listed follow the IUCN Red List of Threatened Species (v. 2014.3; data current at 20 January 2015). They include species as small as the vaquita and as large as the sperm whale, and exhibit diverse characteristics, distribution, and feeding strategies. , Whale populations were drastically reduced in the 20th century from intensive whaling, and the activity was globally banned in 1982. Their brain is also the largest known in any animal, weighing up to 18 pounds (8 kilos). The distinguishing features of these whales are the very large teeth, which are about 9 inches in length. Population number. Their throat is about the size of plate, which is why they feed on plankton and small fish. Six genera have been identified. , Family Kogiidae: dwarf and pygmy sperm whales, Superfamily Platanistoidea: river dolphins, Family Platanistidae: South Asian river dolphin, As of August 2018, the Arabian common dolphin is considered a subspecies of the common dolphin by the, The total population is unknown but numbers in the hundreds of thousands, The only population estimate is of 38,900 individuals in the eastern tropical Pacific Ocean, Total population is not known. , River dolphins are the five cetaceans which reside in freshwater rivers and estuaries. The early archaic whales, archaeocetes like Basilosaurus, resembled extinct mosasaurs and living orcas and hunted in similar ways. Toothed whales include orcas and other dolphins, sperm whales and pilot whales. , The family Balaenidae, the right whales, contains two genera and four species. The important foods of the Toothed Whales are fish, squid, and some can also prey on seabirds, seals, sea beasts and other large animals such as whales. The pygmy right whale shares several characteristics with the right whales, with the exception of having a dorsal fin. That is equivalent to the length of three school buses lined up! Aristotle, however, could already see many physiological and anatomical similarities with the terrestrial vertebrates, such as blood (circulation), lungs, uterus, and fin anatomy. DNA evidence suggests it separated from oceanic dolphins about 25 million years ago. A question is often asked, “What is bigger than a whale?” Well, that answer depends solely on which whale species you are referring to! Dwarf Sperm Whale. The Blue Whale is not only the largest whale species, but the largest mammal on Earth. The list compiled below is based on information in the Encyclopedia of Marine Mammals, the Guide to Marine Mammals of the World and Wikipedia. Their weight averages at around 75 tons but can reach to around 100 tons. Living in temperate waters, the Spade-toothed whales may be threatened by climate change, causing ocean warming, which in turn leads to reduction and modification of their natural range. Today, there about 80 species of living whales, or cetaceans. Pilot whales -- small, toothed whales with a bulging forehead, a short snout and pointed flippers -- are sociable creatures, and live in groups of dozens, hundreds or even thousands.