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Posts

April 18, 2014

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11:36 AM | Upright walking: a long-standing debate (pt. v)
This week it’s the turn of the shoulder to get the long-standing debate treatment. It may not be obvious how changes in the anatomy of the upper limb are related to bipedalism and in fact that’s not really the point here. The most important thing to remember is that evolutionary theory states that features that […]

April 17, 2014

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6:19 PM | The Penan Hunter-Gatherers of Sarawak
For the Penan of Sarawak’s rainforest, the raucous call of the white-crowned hornbill has long heralded dawn. Today, however, they are just as likely to be woken by the sound of chainsaws and falling trees. The tropical rainforest of Sarawak in Borneo, East Malaysia, is one of the most biologically rich forests on earth. It…
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6:19 PM | The Penan Hunter-Gatherers of Sarawak
For the Penan of Sarawak’s rainforest, the raucous call of the white-crowned hornbill has long heralded dawn. Today, however, they are just as likely to be woken by the sound of chainsaws and falling trees. The tropical rainforest of Sarawak in Borneo, East Malaysia, is one of the most biologically rich forests on earth. It…
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5:11 PM | Eat live termites for breakfast? Your ancestors might have!
Termites and ants are not something you’re likely to pour into a cereal bowl for breakfast or munch with toast and tea, but your ancient […] The post Eat live termites for breakfast? Your ancestors might have! appeared first on Smithsonian Science.
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2:00 PM | Is It Good For Kids To Have A Pet?
People overwhelmingly believe that having pets is overall a good thing for children. Indeed, a 2003 paper by developmental psychologist Gail F. Melson reports that most parents say that they acquired... -- Read more on ScientificAmerican.com

Mueller M.K. (2014). Is Human-Animal Interaction (HAI) Linked to Positive Youth Development? Initial Answers, Applied Developmental Science, 18 (1) 5-16. DOI:

Citation
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12:48 AM | Play That Funky Music - And Humans Will Dance
Rhythmic drum patterns with a balance of rhythmic predictability and complexity may influence our desire to dance and enjoy the music, according to a new paper by music scholar Maria Witek from the University of Oxford and colleagues. read more

April 16, 2014

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8:32 PM | Lack of respect for insects bugs a biologist
"Hey, watch where you step! Just because I'm an insect doesn't mean you should crush me!" Emory biologist Jaap de Roode will give students a bug's-eye view of the world in his Maymester course "Insect Biology." (Photo by CaPro/Wikipedia Commons.)“More than half of all animal species alive today are insects and it’s believed that there’s at least a million species of beetles alone,” says Emory biologist Jaap de Roode. “Yet most people will just see an insect and […]
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6:00 PM | The Black Dog
In the last twelve months one of my little sisters has struggled with depression. I think she’s coping remarkably well with it and I’m really very proud of her. Recently she got some bad news and in one of my … Continue reading →

April 10, 2014

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10:24 PM | Stag Parties: Awareness and Elegant Solutions
Kiddo spills her milk. We lock eyes, and she dissolves in a puddle of sadness, crying about how it’s all her fault and she feels SO BAD. “Kiddo, honey, it’s really okay. Let’s get a towel and wipe it... -- Read more on ScientificAmerican.com
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4:00 PM | Could Neanderthals Talk Like Us? Neanderthals, an ancient...
Could Neanderthals Talk Like Us? Neanderthals, an ancient cousin-species to humans, lived for a while at the same time as Homo Sapiens. Could this now-extinct species talk just like you and I do? Trace is here to tell you about a tiny bone found in Neanderthals and modern humans might hold the answer. via DNews Channel.
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10:19 AM | Mammalian brain size influences development of individual cranial bones
In mammals, embryonic cranial development is modular and step-wise: The individual cranial bones form according to a defined, coordinated schedule. The typical increase in the size of the brain in mammals in the course of evolution ultimately triggered changes in this developmental plan, as a study conducted on embryos of 134 species of animal headed …
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10:17 AM | A new genome analysis method confirms that Neandertals interbred with the ancestors of Eurasians.
Technical objections to the idea that Neandertals interbred with the ancestors of Eurasians have been overcome, thanks to a genome analysis method described in the April 2014 issue of the journal Genetics. The technique can more confidently detect the genetic signatures of interbreeding than previous approaches and will be useful for evolutionary studies of other …
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10:06 AM | Indigenous societies’ ‘first contact’ typically brings collapse, but rebounds are possible
It was disastrous when Europeans first arrived in what would become Brazil — 95 percent of its population, the majority of its tribes, and essentially all of its urban and agricultural infrastructure vanished. The experiences of Brazil’s indigenous societies mirror those of other indigenous peoples following “first contact.” A new study of Brazil’s indigenous societies …
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9:58 AM | Europeans have three times more Neanderthal genes than Asians or Africans
Contemporary Europeans have as many as three times more Neanderthal variants in genes involved in lipid catabolism than Asians and Africans. Although Neanderthals are extinct, fragments of their genomes persist in modern humans. These shared regions are unevenly distributed across the genome and some regions are particularly enriched with Neanderthal variants. An international team of …
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6:43 AM | Why do dogs lick people?
Just Wow. Photo: Chris Sembrot PhotographyHi Julie,Yes, but WHY? I loved Claudia Fugazza's guest post about drawing on dogs' social imitation capacities to learn as copy-cats in the Do as I do training technique. Good stuff! A few things collided this week that resulted in me deciding to look into why dogs lick people. The first was the Huffington Post 'This Is What Happens When You Ask People To Kiss Their Dogs In Front Of A Camera' (example above from Chris Sembrot's 'For the love […]

Bradshaw J.W.S., Blackwell E.J. & Casey R.A. (2009). Dominance in domestic dogs—useful construct or bad habit?, Journal of Veterinary Behavior: Clinical Applications and Research, 4 (3) 135-144. DOI:

Bonanni R., Cafazzo S., Valsecchi P. & Natoli E. (2010). Effect of affiliative and agonistic relationships on leadership behaviour in free-ranging dogs, Animal Behaviour, 79 (5) 981-991. DOI:

Citation

April 09, 2014

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5:38 PM | Are These Cave Paintings The First Animations? Over at Nautilus,...
Are These Cave Paintings The First Animations? Over at Nautilus, Zach Zorich illuminates how 21,000 year-old cave paintings at Lascaux may represent an early form of motion picture. Many of the superimposed animal shapes, like the deer heads above (photo by Norbert Aujoulet), can appear to move like a flip-book when they are viewed with the dim, flickering light sources that would have been available to Paleolithic humans. Combine it with some low-light trickery on behalf of the visual […]
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9:30 AM | development through research??
15 years ago, when Chief Khunchai first took a job managing a malaria clinic on a remote stretch of the Thailand-Myanmar (still Burma at that time) border, there weren’t year round roads, there was no electricity, no telephones, and the endemic guerilla warfare between the Karen and the Burmese didn’t pay much attention to the international border.  A Karen military base was just over the mountain on the other side of the river.  Sometimes when fights broke out, mortars […]

April 08, 2014

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11:29 AM | Where Credit is Due: How Acknowledging Expertise Can Help Conservation Efforts
Scientists know that tapping into local expertise is key to conservation efforts aimed at protecting biodiversity – but researchers rarely give credit to these local experts. Now some scientists are saying that’s a problem, both for the local experts and for the science itself. To address the problem, a group of scientists is calling for
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4:14 AM | Human Bones Can Teach Us About 6,000 Years Of Farming
We can identify an athletic body by analysis of their skeletons because bones show remarkably rapid adaptation to both the intensity and direction of strains. Put under stress through physical exertion – such as long-distance walking or running – they gain in strength as the fibers are added or redistributed according to where strains are highest.  read more

April 07, 2014

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7:27 PM | Want Less Rape And Homicide? Have A Male-Dominated Society
Conventional wisdom and sociological arguments have claimed that societies with more men than women, such as China, will become more violent, but a new study has found that a male-biased sex ratio does not lead to more crime.Rates of rape, sexual assault and homicide are actually lower in societies with more men than women, the study found, and evolutionary theories predicting that when males outnumber females, males will compete more vigorously for the limited number of mates don’t hold […]
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12:40 PM | Neanderthal DNA Persists in Humans When modern humans migrated...
Neanderthal DNA Persists in Humans When modern humans migrated out of Africa between 100,000 and 60,000 years ago, they encountered and bred with Neanderthals, our close relatives living in Europe and Asia. For people of non-African descent, approximately 2 percent of their genome has some Neanderthal DNA. New research is investigating which components of the Neanderthal genome survive today—and what traits they influence. via American Museum of Natural History.

April 06, 2014

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5:35 PM | Headhunt Revisited
Text and Photos by iLCP Fellow Michele Westmorland, Headhunt Revisited project. In 1926, painter Caroline Mytinger and her friend, Margaret Warner, set out from San Francisco for a four-year adventure in the Solomon Islands and Papua New Guinea. With little more than $400, a few art supplies, and a trunk of clothing, they made their…
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5:35 PM | Headhunt Revisited
Text and Photos by iLCP Fellow Michele Westmorland, Headhunt Revisited project. In 1926, painter Caroline Mytinger and her friend, Margaret Warner, set out from San Francisco for a four-year adventure in the Solomon Islands and Papua New Guinea. With little more than $400, a few art supplies, and a trunk of clothing, they made their…
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5:35 PM | Headhunt Revisited
Text and Photos by iLCP Fellow Michele Westmorland, Headhunt Revisited project. In 1926, painter Caroline Mytinger and her friend, Margaret Warner, set out from San Francisco for a four-year adventure in the Solomon Islands and Papua New Guinea. With little more than $400, a few art supplies, and a trunk of clothing, they made their…
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5:35 PM | Headhunt Revisited
Text and Photos by iLCP Fellow Michele Westmorland, Headhunt Revisited project. In 1926, painter Caroline Mytinger and her friend, Margaret Warner, set out from San Francisco for a four-year adventure in the Solomon Islands and Papua New Guinea. With little more than $400, a few art supplies, and a trunk of clothing, they made their…

April 05, 2014

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6:40 PM | Did Hobbits Actually Exist? Human evolution was characterized by...
Did Hobbits Actually Exist? Human evolution was characterized by the emergence of several different human species. One of these species, Homo floresiensis, was very small and very isolated. When they were discovered in 2004, many anthropologists had no idea how to classify them and their relationship to other human species was unknown. Today we know a lot more about their history, but we also know a lot more about the human world around them! via theadvancedapes: Transcript: Everyone knows that […]
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2:23 PM | The man with 1000 children: the limit of male fertility
By Greg Downey; (long read: 5500 words) Moulay Ismail ibn Sharif succeeded to the sultanate of Morocco after his brother fell from a horse and died in 1672. Twenty-six when he became the Sharifian Emperor, Moulay Ismael “the Bloodthirsty” — …The post The man with 1000 children: the limit of male fertility appeared first on Neuroanthropology.

Betzig L. (1992). Roman polygyny, Ethology and Sociobiology, 13 (5-6) 309-349. DOI:

Confer J.C., Easton J.A., Fleischman D.S., Goetz C.D., Lewis D.M.G., Perilloux C. & Buss D.M. (2010). Evolutionary psychology: Controversies, questions, prospects, and limitations., American Psychologist, 65 (2) 110-126. DOI:

Cooper T.G., Noonan E., von Eckardstein S., Auger J., Baker H.W.G., Behre H.M., Haugen T.B., Kruger T., Wang C. & Mbizvo M.T. & (2010). World Health Organization reference values for human semen characteristics, Human Reproduction Update, 16 (3) 231-245. DOI:

Einon D. (1998). How Many Children Can One Man Have?, Evolution and Human Behavior, 19 (6) 413-426. DOI:

FREUND M. (1963). Effect of frequency of emission on semen output and an estimate of daily sperm production in man, Reproduction, 6 (2) 269-286. DOI:

Gould R.G. (2000). How many children could Moulay Ismail have had?, Evolution and Human Behavior, 21 (4) 295-296. DOI:

Oberzaucher E., Grammer K. & Szolnoki A. (2014). The Case of Moulay Ismael - Fact or Fancy?, PLoS ONE, 9 (2) e85292. DOI:

Oldereid N.B., Gordeladze J.O., Kirkhus B. & Purvis K. (1984). Human sperm characteristics during frequent ejaculation, Reproduction, 71 (1) 135-140. DOI:

Shackelford T. & Goetz A. (2009). Sexual conflict in humans: evolutionary consequences of asymmetric parental investment and paternity uncertainty, Animal Biology, 59 (4) 449-456. DOI:

Valsa J., Skandhan K.P., Gusani P.H., Sahab Khan P. & Amith S. (2013). Quality of 4-hourly ejaculates - levels of calcium and magnesium, Andrologia, 45 (1) 10-17. DOI:

Woods D.C., Telfer E.E., Tilly J.L. & Barsh G.S. (2012). Oocyte Family Trees: Old Branches or New Stems?, PLoS Genetics, 8 (7) e1002848. DOI:

Citation
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2:23 PM | The man with 1000 children: the limit of male fertility
By Greg Downey; (long read: 5500 words) Moulay Ismail ibn Sharif succeeded to the sultanate of Morocco after his brother fell from a horse and died in 1672. Twenty-six when he became the Sharifian Emperor, Moulay Ismael “the Bloodthirsty” — …The post The man with 1000 children: the limit of male fertility appeared first on Neuroanthropology.

Betzig L. (1992). Roman polygyny, Ethology and Sociobiology, 13 (5-6) 309-349. DOI:

Confer J.C., Easton J.A., Fleischman D.S., Goetz C.D., Lewis D.M.G., Perilloux C. & Buss D.M. (2010). Evolutionary psychology: Controversies, questions, prospects, and limitations., American Psychologist, 65 (2) 110-126. DOI:

Cooper T.G., Noonan E., von Eckardstein S., Auger J., Baker H.W.G., Behre H.M., Haugen T.B., Kruger T., Wang C. & Mbizvo M.T. & (2010). World Health Organization reference values for human semen characteristics, Human Reproduction Update, 16 (3) 231-245. DOI:

Einon D. (1998). How Many Children Can One Man Have?, Evolution and Human Behavior, 19 (6) 413-426. DOI:

FREUND M. (1963). Effect of frequency of emission on semen output and an estimate of daily sperm production in man, Reproduction, 6 (2) 269-286. DOI:

Gould R.G. (2000). How many children could Moulay Ismail have had?, Evolution and Human Behavior, 21 (4) 295-296. DOI:

Oberzaucher E., Grammer K. & Szolnoki A. (2014). The Case of Moulay Ismael - Fact or Fancy?, PLoS ONE, 9 (2) e85292. DOI:

Oldereid N.B., Gordeladze J.O., Kirkhus B. & Purvis K. (1984). Human sperm characteristics during frequent ejaculation, Reproduction, 71 (1) 135-140. DOI:

Shackelford T. & Goetz A. (2009). Sexual conflict in humans: evolutionary consequences of asymmetric parental investment and paternity uncertainty, Animal Biology, 59 (4) 449-456. DOI:

Valsa J., Skandhan K.P., Gusani P.H., Sahab Khan P. & Amith S. (2013). Quality of 4-hourly ejaculates - levels of calcium and magnesium, Andrologia, 45 (1) 10-17. DOI:

Woods D.C., Telfer E.E., Tilly J.L. & Barsh G.S. (2012). Oocyte Family Trees: Old Branches or New Stems?, PLoS Genetics, 8 (7) e1002848. DOI:

Citation
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2:23 PM | The man with 1000 children: the limit of male fertility
By Greg Downey; (long read: 5500 words) Moulay Ismail ibn Sharif succeeded to the sultanate of Morocco after his brother fell from a horse and died in 1672. Twenty-six when he became the Sharifian Emperor, Moulay Ismael “the Bloodthirsty” — …The post The man with 1000 children: the limit of male fertility appeared first on Neuroanthropology.

Betzig L. (1992). Roman polygyny, Ethology and Sociobiology, 13 (5-6) 309-349. DOI:

Confer J.C., Easton J.A., Fleischman D.S., Goetz C.D., Lewis D.M.G., Perilloux C. & Buss D.M. (2010). Evolutionary psychology: Controversies, questions, prospects, and limitations., American Psychologist, 65 (2) 110-126. DOI:

Cooper T.G., Noonan E., von Eckardstein S., Auger J., Baker H.W.G., Behre H.M., Haugen T.B., Kruger T., Wang C. & Mbizvo M.T. & (2010). World Health Organization reference values for human semen characteristics, Human Reproduction Update, 16 (3) 231-245. DOI:

Einon D. (1998). How Many Children Can One Man Have?, Evolution and Human Behavior, 19 (6) 413-426. DOI:

FREUND M. (1963). Effect of frequency of emission on semen output and an estimate of daily sperm production in man, Reproduction, 6 (2) 269-286. DOI:

Gould R.G. (2000). How many children could Moulay Ismail have had?, Evolution and Human Behavior, 21 (4) 295-296. DOI:

Oberzaucher E., Grammer K. & Szolnoki A. (2014). The Case of Moulay Ismael - Fact or Fancy?, PLoS ONE, 9 (2) e85292. DOI:

Oldereid N.B., Gordeladze J.O., Kirkhus B. & Purvis K. (1984). Human sperm characteristics during frequent ejaculation, Reproduction, 71 (1) 135-140. DOI:

Shackelford T. & Goetz A. (2009). Sexual conflict in humans: evolutionary consequences of asymmetric parental investment and paternity uncertainty, Animal Biology, 59 (4) 449-456. DOI:

Valsa J., Skandhan K.P., Gusani P.H., Sahab Khan P. & Amith S. (2013). Quality of 4-hourly ejaculates - levels of calcium and magnesium, Andrologia, 45 (1) 10-17. DOI:

Woods D.C., Telfer E.E., Tilly J.L. & Barsh G.S. (2012). Oocyte Family Trees: Old Branches or New Stems?, PLoS Genetics, 8 (7) e1002848. DOI:

Citation
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2:23 PM | The man with 1000 children: the limit of male fertility
By Greg Downey; (long read: 5500 words) Moulay Ismail ibn Sharif succeeded to the sultanate of Morocco after his brother fell from a horse and died in 1672. Twenty-six when he became the Sharifian Emperor, Moulay Ismael “the Bloodthirsty” — …The post The man with 1000 children: the limit of male fertility appeared first on Neuroanthropology.

Betzig L. (1992). Roman polygyny, Ethology and Sociobiology, 13 (5-6) 309-349. DOI:

Confer J.C., Easton J.A., Fleischman D.S., Goetz C.D., Lewis D.M.G., Perilloux C. & Buss D.M. (2010). Evolutionary psychology: Controversies, questions, prospects, and limitations., American Psychologist, 65 (2) 110-126. DOI:

Cooper T.G., Noonan E., von Eckardstein S., Auger J., Baker H.W.G., Behre H.M., Haugen T.B., Kruger T., Wang C. & Mbizvo M.T. & (2010). World Health Organization reference values for human semen characteristics, Human Reproduction Update, 16 (3) 231-245. DOI:

Einon D. (1998). How Many Children Can One Man Have?, Evolution and Human Behavior, 19 (6) 413-426. DOI:

FREUND M. (1963). Effect of frequency of emission on semen output and an estimate of daily sperm production in man, Reproduction, 6 (2) 269-286. DOI:

Gould R.G. (2000). How many children could Moulay Ismail have had?, Evolution and Human Behavior, 21 (4) 295-296. DOI:

Oberzaucher E., Grammer K. & Szolnoki A. (2014). The Case of Moulay Ismael - Fact or Fancy?, PLoS ONE, 9 (2) e85292. DOI:

Oldereid N.B., Gordeladze J.O., Kirkhus B. & Purvis K. (1984). Human sperm characteristics during frequent ejaculation, Reproduction, 71 (1) 135-140. DOI:

Shackelford T. & Goetz A. (2009). Sexual conflict in humans: evolutionary consequences of asymmetric parental investment and paternity uncertainty, Animal Biology, 59 (4) 449-456. DOI:

Valsa J., Skandhan K.P., Gusani P.H., Sahab Khan P. & Amith S. (2013). Quality of 4-hourly ejaculates - levels of calcium and magnesium, Andrologia, 45 (1) 10-17. DOI:

Woods D.C., Telfer E.E., Tilly J.L. & Barsh G.S. (2012). Oocyte Family Trees: Old Branches or New Stems?, PLoS Genetics, 8 (7) e1002848. DOI:

Citation
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