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ShareDolphins, along with whales and porpoises, are thought to be descendants of terrestrial mammals, most likely of the Artiodactyl order.
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Modern dolphin skeletons have two small rod shaped pelvic bones thought to be vestigial hind legs.
In October of 2006 an unusual Bottlenose Dolphin was captured in Japan that had small fins on either side of the genital slit, which scientists believe to be a more pronounced development of these vestigal hind legs.
Dolphins are often regarded as one of Earth's most intelligent species, though it is hard to say just how intelligent dolphins are as straightforward comparisons of species' relative intelligence are complicated by differences in sensory apparatus, response modes, and nature of cognition.
For more information about the topic Dolphin, read the full article at Wikipedia.org, or see the following related articles:
Porpoise — The porpoises are small cetaceans of the family Phocoenidae; they are related to whales and dolphins. They are distinct from dolphins, although the ... > read more
Toothed whale — The toothed whales (systematic name Odontoceti) form a suborder of the cetaceans. As the name suggests, the suborder is characterized by having ... > read more
Gray Whale — The Gray Whale or Grey Whale, more recently called the Eastern Pacific Gray Whale, is a whale that travels between feeding and breeding grounds ... > read more
Baleen whale — The baleen whales, also called whalebone whales or great whales, form a suborder of the order cetacea. The distinguishing feature between this ... > read more
Evolution of cetaceans — The cetaceans (whales, dolphins and porpoises) are descendants of land-living mammals, and remnants of their terrestrial origins can be found in the ... > read more
U.S. Navy Marine Mammal Program — The U.S. Navy Marine Mammal Program (NMMP) is a program administered by the U.S. Navy which studies the military use of marine mammals (principally ... > read more
Whale — Whales are the largest species of exclusively aquatic mammals, members of the order Cetacea. Like all mammals, whales breathe air into lungs, are ... > read more
Whale song — Whale song is the sound made by whales to communicate. The word "song" is used in particular to describe the pattern of regular and predictable ... > read more
Cetacean intelligence — Cetacean intelligence denotes the cognitive capabilities of the cetacean order of mammals and especially the various species of dolphin. Cetaceans ... > read moreRecommend this page on Facebook, Twitter,
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