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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). The bottlenose, characterized by a “built-in smile” formed by the curvature of its mouth, has become a familiar performer in...
...because of the presence of a pocket of gas in the region of the round window. The performance of the whale ear has been measured in an exact manner throughout the frequency range in one species, the bottle-nosed dolphin (Tursiops truncatus). By a conditioned-response method, it has been found that this animal possesses excellent auditory sensitivity that extends well into the high...
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Aspects of this topic are discussed in the following places at Britannica.
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). The bottlenose, characterized by a “built-in smile” formed by the curvature of its mouth, has become a familiar performer in...
...because of the presence of a pocket of gas in the region of the round window. The performance of the whale ear has been measured in an exact manner throughout the frequency range in one species, the bottle-nosed dolphin (Tursiops truncatus). By a conditioned-response method, it has been found that this animal possesses excellent auditory sensitivity that extends well into the high...
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Aspects of this topic are discussed in the following places at Britannica.
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). The bottlenose, characterized by a “built-in smile” formed by the curvature of its mouth, has become a familiar performer in...
Aspects of this topic are discussed in the following places at Britannica.
...have shown long-term association of dolphins with their mothers. Groups (particularly of small toothed whales) frequently associate with other cetacean species. For example, associations between pilot whales and bottlenose dolphins have been observed, as have associations between common dolphins and fin whales.
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any of the toothed whales belonging to the families Delphinidae (oceanic dolphins) or Platanistidae (river dolphins). Of the 32 species of dolphins in the Delphinidae, 6 are commonly called whales, including the killer whale and the pilot whales.
Most dolphins are small, measuring less than 3 metres (10 feet) in length, and have spindle-shaped bodies, beaklike snouts (rostrums), and simple needlelike teeth. Some of these cetaceans are occasionally called porpoises, but scientists prefer to use this term as the common name for the six species in the family Phocoenidae, all of which differ from dolphins in having blunt snouts and spadelike teeth.
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). The bottlenose, characterized by a “built-in smile” formed by the curvature of its mouth, has become a familiar performer in oceanariums. It has also become the subject of scientific studies because of its intelligence and ability to communicate by using a range of sounds and ultrasonic pulses. It adapts to captivity better than the common dolphin, which is timid.
Dolphins are capable of living in either fresh or salt water. Distributed worldwide in all oceans and...
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...to the standard four qualities of taste: sweet, salty, sour, and bitter. It has been established that the bottlenose dolphin (Tursiops truncatus) has a highly effective sense, called quasi-olfaction, operating through pits in the back of the tongue. This sense permits dolphins to experience what would be classified as smell, but quasi-olfaction does not involve the nasal...
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