Individual dolphins identify themselves to new dolphins they meet

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Dolphins are able to carry on multiple conversations simultaniously.

Dolphins apparently have a system of identifying themselves to each other similar to the way you and I use names.

Scientists have actually known since the 1960s that this system existed. Basically, each dolphin creates their own “signature” whistle when they’re very young. In studies of captive dolphins, they used this whistle mainly when they got separated from the rest of the group. It was like a way of saying, “Hey, I’m over here!” Or, given the environment, perhaps some version of “Marco! Polo!”

But at Not Exactly Rocket Science, Ed Yong writes about a new study of wild dolphins that has really increased our understanding of signature whistles and how dolphins use them…

Continue reading… “Individual dolphins identify themselves to new dolphins they meet”

Anonymous, decentralized and uncensored file-sharing is booming

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Other means of sharing are available if worst case scenarios becomes reality

The file-sharing landscape is slowly adjusting in response to the continued push for more anti-piracy tools, the final Pirate Bay verdict, and the raids and arrests in the Megaupload case. Faced with uncertainty and drastic changes at file-sharing sites, many users are searching for secure, private and uncensored file-sharing clients. Despite the image its name suggests, RetroShare is one such future-proof client.

The avalanche of negative file-sharing news over the past weeks hasn’t gone unnoticed to users and site operators.

From SOPA to Megaupload, there is a growing uncertainly about the future of sharing….

Continue reading… “Anonymous, decentralized and uncensored file-sharing is booming”

Research: People aren’t smart enough for democracy to flourish

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Incompetent people are inherently unable to judge the competence of other people.

The democratic process relies on the assumption that citizens (the majority of them, at least) can recognize the best political candidate, or best policy idea, when they see it. But a growing body of research has revealed an unfortunate aspect of the human psyche that would seem to disprove this notion, and imply instead that democratic elections produce mediocre leadership and policies.

Continue reading… “Research: People aren’t smart enough for democracy to flourish”

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