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A puzzlement. Why, I wonder, are both these things true? There is an animal, a wee little thing, the size of a poppy seed, that lives in lakes and rivers and eats whatever flows through it; it's called a gastrotrich. It has an extremely short life. Hello, Goodbye, I'm Dead It hatches. Three days later, it's all grown up, with a fully adult body "complete with a mouth, a gut, sensory organs and a brain," says science writer Carl Zimmer. In 72 hours it's ready to make babies, and as soon as it does, it begins to shrivel, crumple ... and usually within a week, it's gone. Dead of old age. Sad, no? A seven-day life. But now comes the weird part. There's another very small animal (a little bigger than a gastrotrich) that also lives in freshwater ponds and lakes, also matures very quickly, also reproduces within three or four days. But, oh, my God, this one has a totally different life span (and when I say totally, I mean it's radically, wildly, unfathomably different) from a gastrotrich. It's a hydra. And what it does — or rather, what it doesn't do — is worthy of a motion picture. So we made one. Well, a little one. With my NPR colleague, science reporter Adam Cole, we're going to show you what science has learned about the hydra. Adam drew it, animated it, scored it, edited it. My only contribution was writing it with him, but what you are about to see is as close as science gets to a miracle.

I banned laptops in the classroom after it became common practice to carry them to school. When I created my “electronic etiquette policy” (as I call it in my syllabus), I was acting on a gut feeling based on personal experience. I’d always figured that, for the kinds of computer-science and math classes that I generally teach, which can have a significant theoretical component, any advantage that might be gained by having a machine at the ready, or available for the primary goal of taking notes, was negligible at best. We still haven’t made it easy to type notation-laden sentences, so the potential benefits were low. Meanwhile, the temptation for distraction was high. I know that I have a hard time staying on task when the option to check out at any momentary lull is available; I assumed that this must be true for my students, as well. Over time, a wealth of studies on students’ use of computers in the classroom has accumulated to support this intuition. Among the most famous is a landmark Cornell University study from 2003 called “The Laptop and the Lecture,” wherein half of a class was allowed unfettered access to their computers during a lecture while the other half was asked to keep their laptops closed. The experiment showed that, regardless of the kind or duration of the computer use, the disconnected students performed better on a post-lecture quiz. The message of the study aligns pretty well with the evidence that multitasking degrades task performance across the board.

Emotional intelligence is important, but the unbridled enthusiasm has obscured a dark side. New evidence shows that when people hone their emotional skills, they become better at manipulating others. When you’re good at controlling your own emotions, you can disguise your true feelings. When you know what others are feeling, you can tug at their heartstrings and motivate them to act against their own best interests.

Social scientists have begun to document this dark side of emotional intelligence. In emerging research led by University of Cambridge professor Jochen Menges, when a leader gave an inspiring speech filled with emotion, the audience was less likely to scrutinize the message and remembered less of the content. Ironically, audience members were so moved by the speech that they claimed to recall more of it.

n jobs that required extensive attention to emotions, higher emotional intelligence translated into better performance.

Most people would agree that terrorism is no good. The word itself is rich with moralized connotations. It is true that some have argued that terrorism might sometimes be justified, but in popular discourse, terrorism is typically deemed obviously horrible. What are the consequences of branding some action an act of terrorism, or of branding some group a terrorist group? Note, in connection with this question, the ratcheting up of rhetoric surrounding ‘cyberterrorism,’ with many government officials now listing it as a major ongoing threat (e.g., here and here). A recent study by Adam Feltz and Edward Cokely of the Michigan Institute of Technology found that describing a group of people as ‘terrorist’ had far-reaching results. In general, participants in their study were less willing to “understand the group’s grievances,” less willing to “negotiate with the group.” Further, participants in their study found violence directed towards a group described as terrorist more permissible, and perceived such a group as less rational when compared to a group not described as terrorist.

So it is important to be aware of the ways labels such as terrorist subtly influence the way we perceive other groups of people, and also of the way we perceive people we implicitly associate with such groups.

It’s not true that Chris Burden, the profoundly satirical Los Angeles artist who died last week, of cancer, at sixty-nine, had himself shot in the arm for the performance work “Shoot,” in 1971. Rather, he was shot by a friend whose claim to be a marksman proved an overstatement. The .22 bullet was supposed to only graze Burden. The shooter missed. So Burden told me, years ago. He shared with others that he had been frightened of having himself crucified on a Volkswagen, for “Trans-Fixed” (1974), but was pleasantly surprised by how painlessly the thin nails passed through his hands. He went to extremes, but he wasn’t nuts. When, nearly naked and holding his hands behind him, he wriggled across fifty feet of broken glass in “Through the Night Softly” (1973), the glass was the crumbled safety kind—not that that made for comfort. He said that he liked how the scattered bits, glittering on the asphalt of a parking lot, in the black-and-white film of the event, resemble a starry sky.

Scientists are beginning to tap into a wellspring of knowledge buried in the ancient stories of Australia's Aboriginal peoples. But the loss of indigenous languages could mean it is too late to learn from them.

Data specialist EMC estimates that in 2013 the world contained about 4.4 zettabytes (4.4 trillion gigabytes) of data. By 2020, it expects this to have risen tenfold.History, in other words, has gone online. While this means unprecedented instant access to vast stores of human knowledge and culture, it also means that mountains of digital data of crucial importance to archivists and future historians are potentially under threat from deletion, corruption, theft, obsolescence and natural or man-made disasters.

From the self-absorbed faux seriousness of some (meditating on the grounds of Auschwitz-Birkenau!) to the jarring jokiness of others (hitching a ride by the train tracks!), the pictures have fed a perception of today’s youth as a bunch of technology-obsessed, self-indulgent narcissists. They also bring to mind the photos compiled in the popular Selfies at Funerals Tumblr blog. But if the “funeral selfie” kids were somehow hilarious in their inappropriateness, there’s nothing quite like seeing Israeli teens blowing kisses from the death camps of Poland to send you into a confusing and curious rage.

If we’re going to rely on science as a means for reaching the truth — and it’s still the best tool we have — it’s important that we understand and respect just how difficult it is to get a rigorous result

Scientists’ overreliance on p-values has led at least one journal to decide it has had enough of them. In February, Basic and Applied Social Psychology announced that it will no longer publish p-values.

P-hacking and similar types of manipulations often arise from human biases. “You can do it in unconscious ways — I’ve done it in unconscious ways,” Simonsohn said. “You really believe your hypothesis and you get the data and there’s ambiguity about how to analyze it.” When the first analysis you try doesn’t spit out the result you want, you keep trying until you find one that does.

What makes moral disagreements so intractable? Ethics shouldn’t be as hard as rocket science. Can religion help? It might seem that if morality is a matter of obeying divine commands, we could make short work of moral disagreement, if only we knew which was the true faith. Of course, we don’t. But 2,300 years ago Plato showed that appeals to God’s wisdom, no matter which faith, is irrelevant to what makes for moral rightness.

What about reason? Many philosophers have argued that rational beings can reason their way to the right answers in morality. Kant and Mill both tried to do this, but ended up building incompatible moral theories by reasoning from two quite different starting points.

In recent years some thinkers have argued that the foundations of morality are given by what science, especially evolutionary biology, shows us about the conditions of human flourishing. These philosophers, social psychologists and evolutionary anthropologists argue that there was strong selection for a core set of moral norms that are so widespread they are absent only in psychopaths.

Drug companies have a problem: they are finding it ever harder to get painkillers through clinical trials. But this isn't necessarily because the drugs are getting worse. An extensive analysis of trial data1 has found that responses to sham treatments have become stronger over time, making it harder to prove a drug’s advantage over placebo. The change in reponse to placebo treatments for pain, discovered by researchers in Canada, holds true only for US clinical trials. "We were absolutely floored when we found out," says Jeffrey Mogil, who directs the pain-genetics lab at McGill University in Montreal and led the analysis. Simply being in a US trial and receiving sham treatment now seems to relieve pain almost as effectively as many promising new drugs. Mogil thinks that as US trials get longer, larger and more expensive, they may be enhancing participants’ expectations of their effectiveness.

“Just as with the physical world, where hurricanes, tornadoes, and other ‘acts of God’ just happen, the same is true of the social world,” he wrote. “Some people just do things. They assassinate world leaders, act on poorly thought out ideologies, and leave clues at the scene of the crime. Too strong a belief in the rationality of people in general, or of the world, will lead us to seek purposive explanations where none exists.”

He says conspiracy theorists rely on what he calls “errant data,” or random minutiae within a terror attack or major event that can—and maybe should—go unexplained in reality. Those pushing conspiracies, however, seize on that unexplained info and attempt to explain it in full.It is an effort to connect every dot on the map—every blade of grass on the Grassy Knoll—even if some dots have nothing to with the larger event at all

Crisis class theory is a weirdly hopeful, terribly reductionist coping mechanism, a way to explain a world that can be unjust and needlessly cruel—but wouldn’t be if the “bad guys” controlling it all were vanquished.“There is surely some psychological comfort in believing that a horrific event like a mass murder of schoolchildren never really happened at all—that it was all fake,” he writes.

What could be more exhilarating than experiencing the world through the perspective of another person? In “Remembrance of Things Past,” Marcel Proust’s narrator says that the only true voyage of discovery is not to visit other lands but “to possess other eyes, to behold the universe through the eyes of another, of a hundred others, to behold the hundred universes that each of them beholds.” This is one of the central projects of the humanities; it’s certainly part of the pleasure we get from art and literature.