HENRY - The human evolution news relay

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Remember the amazing lost tribe that was being hawked all over the news a few weeks ago? Ahh, not so lost after all. The real story is actually a whole lot more interesting:

…far from being unknown, the tribe’s existence has been noted since 1910 and the mission to photograph them was undertaken in order to prove that ‘uncontacted’ tribes still existed in an area endangered by the menace of the logging industry….

According to his account, the Brazilian state of Acre offered him the use of an aircraft for three days. ‘I had years of GPS co-ordinates,’ he said. Meirelles had another clue to the tribe’s precise location. ‘A friend of mine sent me some Google Earth co-ordinates and maps that showed a strange clearing in the middle of the forest and asked me what that was,’ he said. ‘I saw the co-ordinates and realised that it was close to the area I had been exploring with my son – so I needed to fly over it.’…

…’When I saw them painted red, I was satisfied, I was happy,’ he said. ‘Because painted red means they are ready for war, which to me says they are happy and healthy defending their territory.‘

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Su et al in today’s PLoS One show that Asiatic honeybees can understand the “Waggledance” (video) language of European honeybees:

The honeybee waggle dance, through which foragers advertise the existence and location of a food source to their hive mates, is acknowledged as the only known form of symbolic communication in an invertebrate. However, the suggestion, that different species of honeybee might possess distinct ‘dialects’ of the waggle dance, remains controversial. Furthermore, it remains unclear whether different species of honeybee can learn from and communicate with each other.

This study reports experiments using a mixed-species colony that is composed of the Asiatic bee Apis cerana cerana (Acc), and the European bee Apis mellifera ligustica (Aml). Using video recordings made at an observation hive, we first confirm that Acc and Aml have significantly different dance dialects, even when made to forage in identical environments. When reared in the same colony, these two species are able to communicate with each other: Acc foragers could decode the dances of Aml to successfully locate an indicated food source.

We believe that this is the first report of successful symbolic communication between two honeybee species; our study hints at the possibility of social learning between the two honeybee species, and at the existence of a learning component in the honeybee dance language.

Very very neat indeed. The full paper is available here: East Learns from West: Asiatic Honeybees Can Understand Dance Language of European Honeybees (doi), and ScienceDaily coverage is here.

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Hanging from the neck of a live goose. Chasing a speeding wheel of cheese down a mountainside. Children smoking. Europeans do all of this and more…. Everyone knows about that annual tempting of fate known as running with the bulls in Pamplona. It’s one of those festivals that make the saner among us scratch our heads in confusion and wonder, “How was that ever a good idea?“

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National Geographic has a fantastic special edition on the Lapita culture and the settlement of Polynesia:

Much of the thrill of venturing to the far side of the world rests on the romance of difference. So one feels a certain sympathy for Captain James Cook on the day in 1778 that he “discovered” Hawaii. Then on his third expedition to the Pacific, the British navigator had explored scores of islands across the breadth of the sea, from lush New Zealand to the lonely wastes of Easter Island. This latest voyage had taken him thousands of miles north from the Society Islands to an archipelago so remote that even the old Polynesians back on Tahiti knew nothing about it.

Imagine Cook’s surprise, then, when the natives of Hawaii came paddling out in their canoes and greeted him in a familiar tongue, one he had heard on virtually every mote of inhabited land he had visited. Marveling at the ubiquity of this Pacific language and culture, he later wondered in his journal: “How shall we account for this Nation spreading it self so far over this Vast ocean?”

Continued at: How ancient voyagers settled the far-flung islands of the Pacific. Don’t miss the videos of Jared Diamond and Pat Kirch either.

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The NY Times has a fascinating article by Alex Kotlowitz on how organisations like CeaseFire are having success at reducing gang violence in Chicago by treating it like a disease:

CeaseFire’s founder, Gary Slutkin, is an epidemiologist and a physician who for 10 years battled infectious diseases in Africa. He says that violence directly mimics infections like tuberculosis and AIDS, and so, he suggests, the treatment ought to mimic the regimen applied to these diseases: go after the most infected, and stop the infection at its source. “For violence, we’re trying to interrupt the next event, the next transmission, the next violent activity,” Slutkin told me recently. “And the violent activity predicts the next violent activity like H.I.V. predicts the next H.I.V. and TB predicts the next TB.” Slutkin wants to shift how we think about violence from a moral issue (good and bad people) to a public health one (healthful and unhealthful behavior). (More at NYT)

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Jared Diamond in the New Yorker discusses what tribal societies can tell us about our need for vengeance:

In 1992, when Daniel Wemp was about twenty-two years old, his beloved paternal uncle Soll was killed in a battle against the neighboring Ombal clan. … Soll’s death demanded vengeance.

Daniel told me that responsibility for arranging revenge usually falls on the victim’s firstborn son or, failing that, on one of his brothers. “Soll did have a son, but he was only six years old at the time of his father’s death, much too young to organize the revenge,” Daniel said. “On the other hand, my father was felt to be too old and weak by then; the avenger should be a strong young man in his prime. So I was the one who became expected to avenge Soll.” As it turned out, it took three years, twenty-nine more killings, and the sacrifice of three hundred pigs before Daniel succeeded in discharging this responsibility.

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There’s a rather fascinating article in Marie Clare (!?) about Kayan refugees in Thailand being forced to show off their native dress in a “human zoo”:

Zember, a quick-witted young woman with a cheerful, oval face, doesn’t want to be a human exhibit. Ever since she was 5, she has worn brass rings around her neck and smiled at foreigners who tromp through her rural village in Thailand. For tourists, it seems like the adventure of a lifetime — riding in a jeep through the snake-infested jungle to see the exotic “long-neck women” of the Kayan tribe. But now Zember has removed her coil — in protest of her captivity. She no longer wants to keep Thailand’s shameful secret: that the long-neck women are Burmese refugees who are being prevented by Thai authorities from taking up asylum overseas. As a lucrative tourist attraction, the women are forced to live in a virtual human zoo.

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