A dolphin is an aquatic mammal within the infraorder Cetacea. Dolphin species belong to the families Delphinidae (the oceanic dolphins), Platanistidae (the Indian river dolphins), Iniidae (the New World river dolphins), Pontoporiidae (the brackish dolphins), and the extinct Lipotidae (baiji or Chinese river … See more The name is originally from Greek δελφίς (delphís), "dolphin", which was related to the Greek δελφύς (delphus), "womb". The animal's name can therefore be interpreted as meaning "a 'fish' with a womb". The name … See more Dolphins have torpedo-shaped bodies with generally non-flexible necks, limbs modified into flippers, a tail fin, and bulbous heads. Dolphin skulls have small eye orbits, long snouts, and eyes placed on the sides of its head; they lack external ear flaps. Dolphins … See more Socialization Dolphins are highly social animals, often living in pods of up to a dozen individuals, though pod sizes and structures vary greatly between species and locations. In places with a high abundance of food, pods can merge … See more In 1933, three hybrid dolphins beached off the Irish coast; they were hybrids between Risso's and bottlenose dolphins. This mating was later repeated in captivity, producing a hybrid … See more Dolphins are descendants of land-dwelling mammals of the artiodactyl order (even-toed ungulates). They are related to the Indohyus, an extinct chevrotain-like ungulate, from which they split approximately 48 million years ago. The primitive … See more Dolphins are known to teach, learn, cooperate, scheme, and grieve. The neocortex of many species is home to elongated See more Dolphins have few marine enemies. Some species or specific populations have none, making them apex predators. For most of the smaller species … See more WebThe species is an average-sized oceanic dolphin. Females weigh up to 150 kg (330 lb) and males 200 kg (440 lb) with males reaching 2.5 m (8.2 ft) and females 2.3 m (7.5 ft) in length. Pacific white-sided dolphins usually tend to be larger than dusky dolphins. Females reach maturity at seven years.

Evolution of Dolphins - microbewiki - Kenyon College

WebGeschichte. Als seriennahe Studie BYD EA1 wurde das Fahrzeug im April 2024 auf der Shanghai Auto Show vorgestellt. Das Serienmodell debütierte im Juni 2024. Seit August … WebThe Dolphins are a professional rugby league football team based in the Redcliffe Peninsula area of the Moreton Bay Region (which is part of the greater Brisbane area of south-east Queensland), that competes in the Australian National Rugby League (NRL). Launched as a bid for inclusion into the NRL by Queensland Cup side Redcliffe … day of month in dax

WebDec 6, 2024 · Dolphins have vertical spines leaving them swimming with vertical movements, while fish movements are horizontal. In comparison to the Pakiectus, dolphins have much larger skulls with a shape that has adapted to accommodate for a padded lower jaw and extended middle ear. Having an extended middle ear allows the dolphins to use … WebAll dolphins have conical-shaped teeth. A Risso's dolphin has 14 while a spinner dolphin can have 240. The orca (killer whale) is the largest dolphin. Hector's dolphin and Franciscana are two of the smallest. The four river dolphin species inhabit the large waterways of Asia and South America. WebMar 30, 2024 · dolphin (plural dolphins) A carnivorous aquatic mammal in one of several families of order Cetacea, famed for its intelligence and occasional willingness to approach humans. Tursiops truncatus, (Atlantic bottlenose dolphin) the most well-known species. Synonyms: mereswine, sea goose, sea pig dayofmonth in oracle