Early humans may have evolved black skin to protect against a very high risk of dying from ultraviolet light-induced skin cancer, a new analysis concludes. Skin cancer has usually been rejected as the most likely selective pressure for the development of black skin because of a belief that it is only rarely fatal at ages … Continue reading Skin cancer risk may have driven evolution of black skin — ScienceDaily
Tag: Evolution
It’s Darwin Day, a celebration of science and reason | Machines Like Us
Darwin Day, according to the International Darwin Day Foundation, is “a global celebration of science and reason held on or around Feb. 12, the birthday anniversary of evolutionary biologist Charles Darwin." The idea of the celebration arose in 1993 as part of the activities of the Stanford Humanist Community, then headed by biologist Robert Stephens. … Continue reading It’s Darwin Day, a celebration of science and reason | Machines Like Us
Deep history, and deep future?
John Schellenberg has an article up on Aeon noting that, while we seem to have no problem accepting deep time in the past, there isn't much discussion of deep future, that is, the future millions or billions of years in the future. It's an interesting article (aside from an unfortunate plea for us to take Thomas … Continue reading Deep history, and deep future?
The foundations of morality
Last week, I made a post on the fact that we have desires, urges, impulses, motivations, that are inherently not rooted in reason or logic, that while reason and logic are extremely useful, they are tools of these desires, these instincts. And that while reason can have an effect on how we resolve conflicts between … Continue reading The foundations of morality
Morality arises from instincts
What is morality? Look it up on Wikipedia or most dictionaries, and you'll get something about whether acts or intentions are right or wrong. But what is right and wrong? Right and wrong for what? The usual answer is right and wrong for values. But what are values? Look that up, and after glossing over … Continue reading Morality arises from instincts
Seven things about evolution – john hawks weblog
What is evolution? In its original sense, evolution meant "unrolling", as if a papyrus scroll were being unrolled to reveal its contents. We may talk about the "evolution" of many things, from an individual's lifetime to the evolution of the universe. In the most general sense, evolution means "change". Biologists are very specific about the … Continue reading Seven things about evolution – john hawks weblog
This View of Life: The Evolution of Fairness
http://www.youtube.com/watch?v=gOtlN4pNArk Brosnan and de Waal’s finding of fairness in the capuchin monkey has settled the long-standing question of whether animals have a sense of fairness and further blurred the line between humans and other animals in a new territory: the sphere of morality. *** The questions now are how fairness works and why it evolved. … Continue reading This View of Life: The Evolution of Fairness
Bill Nye Wants To Wage War on Anti-Science Politics, Make a Movie—And Save the Planet From Asteroids | Mother Jones
But of his new endeavors, he's likely best known for his politically tinged, no-bullshit talk about science education in America. Over the past few years, he's gained wide attention on social media, the lecture circuit, and television (he's appeared on CNN's Piers Morgan Live and HBO’s Real Time with Bill Maher, among others) for countering … Continue reading Bill Nye Wants To Wage War on Anti-Science Politics, Make a Movie—And Save the Planet From Asteroids | Mother Jones
What Americans believe
Pew published the results of a new study this morning that is getting a lot of attention on the web: Six-in-ten Americans (60%) say that “humans and other living things have evolved over time,” while a third (33%) reject the idea of evolution, saying that “humans and other living things have existed in their present … Continue reading What Americans believe
‘Just Babies – The Origins of Good and Evil,’ by Paul Bloom – NYTimes.com
Is morality innate? In his new book, “Just Babies,” the psychologist Paul Bloom draws from his research at the Yale Infant Cognition Center to argue that “certain moral foundations are not acquired through learning. . . . They are instead the products of biological evolution.” Infants may be notoriously difficult to study (rats and pigeons … Continue reading ‘Just Babies – The Origins of Good and Evil,’ by Paul Bloom – NYTimes.com