| 词汇 | dolphin |
| 释义 | dolphin noun[ C ] uk /ˈdɒl.fɪn/ us /ˈdɑːl.fɪn/ B1 a sea mammal that is large, smooth, and grey, with a long, pointed mouth海豚 Eco/UIG/Universal Images Group/GettyImages Marine mammals beluga cetacean dugong elephant seal fluke harp seal humpback whale killer whale manatee megalodon narwhal orca porpoise ringed seal sea cow seal walrus whale white whale After studying dolphins, people built submarines to move quickly in the ocean and stay under the water for a long time. Dolphins move quickly in the water not only to be safe from danger. Dolphins use their tails to go faster and their fins to change direction. Whales and dolphins look like fish, but they’re really mammals! While many other animals, such as chimpanzees and dolphins, live in groups and communicate, scientists don’t know for certain whether they can talk and share complicated ideas. He notices that the dolphin's bright colors afford a warning to his enemies, and give them a chance of escape. He tapped out a distress call which the dolphins could relay to the swimmers. I tell you there's a shark swimming in these waters—a shark so big that by comparison Port Royal Tom would seem like a dolphin. The dolphin is called, from the swiftness of its motion, the arrow of the sea. We had too much reason to fear, for scarce was the sun set when we saw about twenty men from a desert island advancing towards us, each on the back of a large dolphin. dolphin | American Dictionarydolphin noun[ C ] us/ˈdɑl·fən, ˈdɔl-/ a sea mammal that looks like a large fish with a pointed mouth Examples of dolphindolphin There was no program for the labeling of shrimp products which are turtle friendly, as is the case with dolphin friendly tuna. Thus, the dolphin developed a broad concept of imitation. The extremely divergent nature of these features from that of other mammalian brains continues to be the centerpoint of active debate about dolphin intelligence. It may be premature to restrict the phenomenon of culture to humans, after reflecting on the brain and behavioural evidence for social evolution in dolphins. We have suggested several aspects of the natural history of whales and dolphins that may have promoted the evolution of these complex cultures. If dolphins are capable of collaborative learning, based on experimental evidence of social cognition, cultural learning may prove not to be a uniquely human phenomenon. Research on a broader range of species has been limited by an availability bias favoring the bottlenose dolphin. Quantitative tools for comparing animal communication systems: information theory applied to bottlenose dolphin whistle repertoires. Finally, there is some confusion among the commentators regarding whether individual learning under different ecological conditions could account for foraging specialisations in bottlenose dolphins. It has been a curious phenomenon to trace the popular perception of dolphins over the last few decades. The most obvious example is the beach favored by the beaching dolphins. This is also true for the "sponging" behavior of dolphins. One possibility is suggested by the way in which the dolphins' matching behaviours appear reminiscent of synchronised swimming, where two individuals perform similar acts simultaneously. These abilities appear to be reserved for humans, great apes, and possibly, dolphins. Her answer was that we provided substantial evidence and a cogent argument for declarative consciousness as a shared psychological property in humans, monkeys, and dolphins. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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