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Evolving Thoughs, The evolution of morality:

“Morality is an “acquired dialect”, which is a very useful metaphor. Like a dialect, it is conventional, and varies by geography. It is not inborn (although the capacity to acquire it, like that of language, is), and it doesn’t correlate with biology (a Sicilian raised in Japan would speak Japanese, not Sicilian). This is what Sayre-McCord refers to as social conventions. And these things evolve at the social level, not (in general) at the biological. So to explain why, for example, it is regarded as moral to marry a first cousin in Louisiana, but not in London, while marrying within “seven degrees of kinship” in Orthodox society, or marrying anyone with the same family name in Korea (but a first cousin of a different name is acceptable) are considered taboo; these things are best explained in terms of the historical process at the level of social institutions, conventions, economic and cultural factors, rather than biology.

But explaining why it is that humans are disposed to learn and accommodate themselves to these cultural rules is another matter. Moreover, it may be that some moral rules are in fact biologically based, or biased, or at least agreeable. (…)”

Link: sevenload.com

Edge 235, Life a Gene-Centric View. Craig Venter & Richard Dawkins: A Conversation in Munich:

“It’s not everyday you have Richard Dawkins and Craig Venter on a stage talking for an hour about “Life: A Gene-Centric View”. That it occured in Germany, where the culture has been resistant to open discussion of genetics, and at DLD, the Digital, Life, Design conference organized by Hubert Burda Media in Munich, a high-level event for the digital elite — the movers and shakers of the Internet — was particularly interesting. This event was a continuation of the Edge “Life: What a Concept!” meeting in August, 2008.”

Eurozine, Watching David Attenborough:

“We are looking at something that probably not one of us has ever seen before. We are staring in perfect colour close-up at the slow, rhythmic uncoiling of a slimy proboscis. But what are we to make of the strange and oddly beautiful sight before our eyes? The camera pulls back a fraction. The answer is revealed. We are looking at a snail. A familiar garden snail. And as our recognition dawns, the background music, a gently impelling blend of harps and violins, fades slightly, and we hear the characteristic hushed intensity of one of the most famous voices in the world. “We don’t often see a snail that way”, says David Attenborough. “And that’s because we’ve only recently had the tiny lenses and electronic cameras we need to explain this miniature world.”

We are entering, burrowing into, the first part of Attenborough’s most recent BBC series, Life in the Undergrowth: by the time the five episodes are over another four hours of screen time will have been added to the ninety or so hours of extraordinary television footage that he and his various teams have compiled for television viewers over the last 30 years.”

TIR, What Cooking Did For Human Evolution:

“Could primates have evolved into humans without knowing how to cook? For 10 years, Harvard University primatologist Richard Wrangham has gathered data that he says show that the discovery of cooking allowed humans to evolve. The only snag, according to Scientific American: He has yet to prove that humans’ ancestors could control fire, a missing link that some scientists say casts doubt on the cooking hypothesis.”

Zie: Cooking Up Bigger Brains.

Scientific American, Culture Speeds Up Human Evolution:

“Homo sapiens sapiens has spread across the globe and increased vastly in numbers over the past 50,000 years or so—from an estimated five million in 9000 B.C. to roughly 6.5 billion today. More people means more opportunity for mutations to creep into the basic human genome and new research confirms that in the past 10,000 years a host of changes to everything from digestion to bones has been taking place.

“We found very many human genes undergoing selection,” says anthropologist Gregory Cochran of the University of Utah, a member of the team that analyzed the 3.9 million genes showing the most variation. “Most are very recent, so much so that the rate of human evolution over the past few thousand years is far greater than it has been over the past few million years.”

“We believe that this can be explained by an increase in the strength of selection as people became agriculturalists—a major ecological change—and a vast increase in the number of favorable mutations as agriculture led to increased population size,” he adds.”

Telegraph, Dolphins woo females with bunches of weeds:

“A new study shows that male dolphins carry pieces of plants and twigs to impress females, rather than simply playful behaviour as previously believed.

Object-carrying as part of sexual display is rare in the animal kingdom, with only humans and chimpanzees doing anything similar.”

Photo: jet propulsion, by ucumari (Set)

Der Spiegel: Polar Bears for the South Pole?

“Schwartz and a number of his colleagues have published a study that asks a radical question: If certain animals and plants are unable to flee rising temperatures, should we help them? “One obvious solution,” Schwartz says, “is to help species at risk move to new environments where they may thrive.” The truth is that animals and plants are already reacting to global warming, most of them migrating northward. Butterflies and bats are moving toward the poles. Scarlet dragonflies and praying mantises are becoming prevalent in southern Germany. Ospreys and house martins have begun wintering in the Mediterranean instead of Africa.

These changes are not necessarily a bad thing. “Many species benefit from climate change,” says Reichholf. For instance, cranes and bald eagles, both considered endangered or threatened species until now, would encounter better living conditions in a warmer Europe. Pests like the bark beetle are feeling increasingly comfortable in northern latitudes. Elk and wild boar are expanding their range as favorite foods become more abundant.

But biologists calling for quick and decisive action are worried about species physically prevented from moving to new habitats.”

Chew on This. Take a deep breath, swallow hard, and follow the food you eat on its day-long journey through the digestive system.

Willem van Hoorn, Geloof strijdt met wetenschap

“Er is een onoverbrugbaar verschil tussen geloof en vrije wetenschapsbeoefening. Cees Dekker vermengt beide op ontoelaatbare wijze.”

Bovenstaande naar aanleiding van Dekker, Stel grenzen aan het gesleutel aan de mens.

TierneyLab: “No, it’s not 50 percent, as I’ll explain shortly.” (via)

Biologists Helping Bookstores. Reshelving pseudo-scientific nonsense since 2007.

“I’m not sure if you’ve noticed, but some bookstores seem to have a little problem discerning science from non-science. I’m specifically talking about biology books vs. creationist books. Sometimes, you will find psuedo-scientific rubbish such as “intelligent design” books next to such authors as Darwin, Mayr, Gould, et al.”

“A population of butterflies has evolved in a flash on a South Pacific island to fend off a deadly parasite.

The proportion of male Blue Moon butterflies dropped to a precarious 1 percent as the parasite targeted males. Then, within the span of a mere 10 generations, the males evolved an immunity that allowed their population share to soar to nearly 40 percent—all in less than a year.”

Live Science: Evolution Occurs in the Blink of an Eye

Live Science: “The long childhoods and delayed maturity common in modern humans are traits that date back to at least the early members of our own species in Africa.”

Nature: “Hugging diffuses the tension when two bands of monkeys meet, say the British researchers who made the discovery. Without these calming embraces, the situation can escalate into aggression and even physical attacks, they report.”

Live Science: “Designs for a doomsday vault for seeds of the world, to be carved deep into frozen rock on an island not far from the North Pole, were revealed today by the government of Norway.”

Zie ook Wikipedia: Svalbard Global Seed Vault.

BBC: “The tiny skeletal remains of human “Hobbits” found on an Indonesian island belong to a completely new branch of our family tree, a study has found.”

The top 100 Evolutionarily Distinct and Globally Endangered: “Recent studies indicate that almost 75 per cent of the world’s most extraordinary threatened mammals are receiving little or no conservation attention. If these species go extinct, they will be lost forever. There are no similar animals on earth to replace them.”

LiveScience: “There is nothing kind or gentle about a hanging. It is a process scientifically designed to break the neck and choke a person to death as efficiently as possible.”