Dolphins form strong bonds with other dolphins, and if one dolphin become injured, the others help it to reach the surface. Most dolphins stay in groups of up to 12 dolphins, but many groups often come together in the ocean wild, at which time, dolphins may exit one group and join another.
Size. In general, bottlenose dolphins are 2 to 3.9 m (6.6 to 12.8 ft.). Their average weight is 150 to 200 kg (331.5 to 442 lbs.). Maximum length and weight reported in the wild was from an individual in the Eastern North Atlantic that measured 4.1 m (13.5 ft.) and 650 kg (1,400 lbs.).
The name dolphin is also given to an unrelated species: a large fish of open tropical seas. The dolphin fish (Coryphaena hippurus) is also called the mahimahi, coryphene, or dorado. It is bright blue and green with irregular, gold-tinted patches on the sides.
All dolphin species have a similar physical appearance. They have elongated snouts and rounded heads that have no distinct separation from the rest of their bodies. The main part of their bodies taper down into their tails -- known as flukes -- at the end. Dorsal fins and pectoral flippers are also present.
Dolphins (Odontoceti) are a group of 44 species of toothed whales or cetaceans.There are dolphins in every ocean on Earth, and there are freshwater species of dolphins that inhabit rivers in South Asian and South American. The largest dolphin species (the orca) grows to more than 30 feet long while the smallest, Hector's dolphin, is just 4.5 feet in length.
Bottlenose dolphins are well known as the intelligent and charismatic stars of many aquarium shows. Their curved mouths give the appearance of a friendly, permanent smile, and they can be trained ...
The physical features of Ghana differ from Jamaica's physical features in that Ghana has a desert while Jamaica does not Asked in Dolphins and Porpoises What are dolphins distinguishing features ...
Dolphin is a common name of aquatic mammals within the infraorder Cetacea.The term dolphin usually refers to the extant families Delphinidae (the oceanic dolphins), Platanistidae (the Indian river dolphins), Iniidae (the New World river dolphins), and Pontoporiidae (the brackish dolphins), and the extinct Lipotidae (baiji or Chinese river dolphin). There are 40 extant species named as dolphins.
Some dolphin species hunt well in groups. According to Sea World, bottlenose dolphin groups (known as pods) occasionally encircle a large school of fish, herding them into a dense mass. Individual dolphins then charge the mass to feed, one at a time. This behavior shows the advanced social adaptation of a dolphin's brain.
Dolphins are popularly noted for their grace, intelligence, playfulness, and friendliness to humans. The most widely recognized species are the common and bottlenose dolphins (Delphinus delphis and Tursiops truncatus, respectively).The bottlenose, characterized by a “built-in smile” formed by the curvature of its mouth, has become a familiar performer in oceanariums.