Archive for Animal behavior

Permitted loads are not allowed

Driving on I-91N between New Haven and Hartford a couple of days ago, I saw this sign describing one of the exits:

Permitted loads are not allowed on Route ___.

At least that's what I think it said. According to Michael Quinion's World Wide Words (4/16/2011):

Gordon Drukier noted that new signs have appeared In the past few months on the approaches to State Route 3 from Interstate 91 in Connecticut. These warn: ROUTE 3 NO PERMITTED LOADS ALLOWED

I suspect that Mr. Drukier's attention and memory were better than mine, but I haven't been able to find a picture to verify either version.

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The other shoe drops at Harvard

Carolyn Johnson, "Embattled Harvard psychology professor resigns", 7/19/2011:

Marc Hauser, a well-known Harvard psychology professor who has been on leave since an internal investigation found him guilty of eight counts of scientific misconduct, is leaving the university.

“Marc Hauser has resigned his position as a faculty member, effective August 1, 2011,” Harvard spokesman Jeff Neal wrote in an e-mail statement today.

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Finch linguistics

Andy Coughlan, "First evidence that birds tweet using grammar", New Scientist 6/26/2011:

They may not have verbs, nouns or past participles, but birds challenge the notion that humans alone have evolved grammatical rules.

Bengal finches have their own versions of such rules – known as syntax – says Kentaro Abe of Kyoto University, Japan. "Songbirds have a spontaneous ability to process syntactic structures in their songs," he says.

To show a sense of syntax in the animals, Abe's team played jumbled "ungrammatical" remixes of finch songs to the birds and measured the response calls.

The basic article is Kentaro Abe & Dai Watanabe, "Songbirds possess the spontaneous ability to discriminate syntactic rules", Nature Neuroscience 6/26/2011. And like the coverage in New Scientist, it's both true and misleading.

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Verbs not appropriate for snake as subject

Luke Yeomans (pictured) had a king cobra sanctuary in Nottingham, England, and planned to open it to the public this weekend, but instead one of his cobras killed him on Wednesday with a single bite, a hefty injection of neurotoxic and cardiotoxic venom that gave him a heart attack. Sadly, the linguistic signs that he would be killed this way were already present in the record, quite clear in something he had said. I wish someone could have warned him.

The Daily Telegraph quotes Yeomans as saying this about why the snakes offered no threat to him:

These king cobras know I provide them with food and fresh water so they're not going to go out of their way to do harm to me when I do no harm to them whatsoever. People say I’m mad but it’s better than saying that you’re bad and everything I do is good. My life is about the conservation of the king cobra.

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Altmann: Hauser apparently fabricated data

There's new information emerging from the slow-motion Marc Hauser train wreck. Carolyn Johnson, "Journal editor questions Harvard researcher's data", Boston Globe 8/27/2010:

The editor of a scientific journal said today the only "plausible" conclusion he can draw, on the basis of access he has been given to an investigation of prominent Harvard psychology professor Marc Hauser's research, is that data were fabricated.

Gerry Altmann, the editor of the journal Cognition, which is retracting a 2002 article in which Hauser is the lead author, said that he had been given access to information from an internal Harvard investigation related to that paper. That investigation found that the paper reported data that was not present in the videotape record that researchers make of the experiment.

“The paper reports data … but there was no such data existing on the videotape. These data are depicted in the paper in a graph,” Altmann said. “The graph is effectively a fiction and the statistic that is supplied in the main text is effectively a fiction.”

Gerry Altmann posted a statement on his weblog with a more detailed account: harvard misconduct: setting the record straight", 8/27/2010). As indicated in Johnson's article, the facts and interpretations that Altmann provides go beyond, to a shocking degree, previously described issues of lost data or disagreement about subjective coding of animal behavior.

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Monkey business?

Carolyn Y. Johnson, "Author on leave after Harvard inquiry", Boston Globe 8/10'/2010:

Harvard University psychologist Marc Hauser — a well-known scientist and author of the book “Moral Minds’’ — is taking a year-long leave after a lengthy internal investigation found evidence of scientific misconduct in his laboratory.

The findings have resulted in the retraction of an influential study that he led. “MH accepts responsibility for the error,’’ says the retraction of the study on whether monkeys learn rules, which was published in 2002 in the journal Cognition.

Two other journals say they have been notified of concerns in papers on which Hauser is listed as one of the main authors.

It is unusual for a scientist as prominent as Hauser — a popular professor and eloquent communicator of science whose work has often been featured on television and in newspapers — to be named in an investigation of scientific misconduct. His research focuses on the evolutionary roots of the human mind.

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Frog Crisis in Greece

It's bad enough to have to weather a disastrous economic crisis, but now the Greeks are faced with a frog crisis.  Millions of migrating frogs — a veritable carpet of the slippery, slimy fellows — have closed down a major Greek highway near Thessaloniki.

I believe that the usual word for "frog" in modern Greek is batrachos, but all of Greece is referring to the current batrachian horde with the Biblical word tzfardei'a.  In so doing, I suppose they wish to recall the Biblical plague of frogs that God inflicted on Egypt (the second of ten plagues that he sent against the Egyptians).  In fact, the plague of frogs was meant as an attack on the Egyptian frog goddess Heqt, whose job it was to assist women in labor.

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Tool use?

From the holiday special issue of New Scientist, a short item "Coconuts make the best hideouts" (in the print version, the more sober "Octopuses use coconut shells as portable shelters" in the on-line version). Andy Coghlan writes (in the on-line version):

Octopuses have been observed carrying coconut shells in what researchers [in Current Biology] claim is the first recorded example of tool use in invertebrates.

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