Dolphins opposable thumbs

Along with other whales, dolphins give themselves names, they have language dialects, they raise children as a group and they care for their elders. In the high school-like dynamics of a prehistoric tribe, cleverer members were more likely to have sex, keep the tribe safe and generally avoid getting their heads bashed in. While other animals lived in simple pecking orders, early humans dwelled in a complex political world of alliances, manipulation and cooperation. As a result, goes the theory, the human species was organized in such a way that it favoured the quick evolution of increasingly witty members. By analyzing the social dynamics of whales and dolphins, researchers wanted to find out if cetaceans might be locked in a similar cycle of evolving ever-giant brains due to their convoluted social lives. If a whale species had ever shown the ability to predict the mental states of others, for instance, their score got a boost.
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Report: The only thing stopping dolphins from destroying us is a lack of hands

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Dolphins Evolve Opposable Thumbs

The sophisticated societies that whales and dolphins live in are as complex as human societies, a study has found. Their only downfall is the lack of opposable thumbs, making complex technology next to impossible for them to develop. An extensive study comparing 90 species of dolphin, whale and porpoise — collectively known as cetaceans — found a remarkable level of social and cultural development among the animals. They talk to each other and have regional dialects. They even have the concept of naming. That's not all.
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Dolphins Have ‘Human-Like’ Societies, But Are Held Back By Their Lack Of Opposable Thumbs

Please refresh the page and retry. W hales and dolphins live in human-like societies and share similar brain evolution to primates and man, scientist have concluded. A new study which looked at 90 species found a link between brain size and social and cultural traits in marine mammals. The theory suggests that intelligence developed as a means of coping with large and complex social groups.
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Dolphins have long been recognized as being highly intelligent and sentient creatures, but a new study suggests they could have gone so far as to become the dominant species on our planet — if only they evolved opposable thumbs. For the study, researchers set out to explore the relationship between social behaviours and brain size in cetaceans, a group that includes dolphins, whales and porpoises. This process, known as encephalization, is known to have occurred in humans. These findings show that dolphins and other cetaceans, despite having different brain structures from humans, may have similar cognitive and social skills, said Kieran Fox, a neuroscientist at Stanford University.
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