Empathy: Part Choice, Part Genetics

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(Credit: Shutterstock) Empathy is widely agreed upon to be one of the most human emotions that we possess. Seriously, no one’s ever complained about too much empathy. It facilitates human relationships by allowing us to examine, understand and process the feelings and emotions of others. The absence of empathy is often linked to disruptive behavioral problems. Given its import in society, a group of scientists from the University of Cambridge and Institut Pasteur analyzed the results fro ...read more

Come Hell or Supervolcano, Humanity Will Be Alright

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(Credit: Melkor3D/Shutterstock) Every year or so, a fresh rash of concern about the Yellowstone supervolcano spreads across the internet. While the likelihood of an eruption there remains remote, if the caldera were to blow, it could be devastating. Previous eruptions there covered much of North America in choking ash, and likely caused sharp drops in temperature that would decimate crops today. Living through a supervolcano eruption certainly qualifies as a doomsday scenario. But, humanity mi ...read more

Here's what real science says about the role of CO2 as Earth's preeminent climatic thermostat

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The relatively thin atmospheric cocoon that protects us from meteor impacts and radiation also makes for a habitable climate, thanks to the greenhouse gases it contains — carbon dioxide first and foremost. In this photograph captured by an astronaut aboard the International Space Station on July 31, 2011, the oblique angle reveals the atmosphere’s layers, along with a thin crescent Moon illuminated by the Sun from below the horizon of the Earth. (Source: NASA Earth Observatory) Whe ...read more

Your Weekly Attenborough: Acisoma attenboroughi

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(Credit: Greg Lasley) Klaas-Douwe Dijkstra is no stranger to new insects. The prolific odonatologist has dozens to his name, thanks in large part to a sweeping 2015 paper cataloguing the results of 15 years of work in Africa. That effort added 60 dragonflies and damselflies to the scientific record, and was met with general acclaim from critics. Most people would be content to coast on the success of a mainstream breakthrough, but Dijkstra returned just months later, dropping a brand ...read more

Daylight Saving Time Has a Dark Side

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A New York engineer is wheeled away in December 2013, after a train he was driving crashed. Lack of sleep could have been a factor. (Credit: AP Photo/Robert Stolarik) A train hurtled around a corner at 82 mph, eventually coming off the rails and killing four passengers. Decades earlier, faulty decision-making resulted in the deaths of the seven-person crew of the Space Shuttle Challenger. Years before these events, a stuck valve regulating the supply of coolant to a nuclear reactor nearly resul ...read more

Say what? This is the storm-tossed north pole of Jupiter?

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NASA’s Juno mission to Jupiter has produced some wild imagery of the giant planet, showing massive swirling cyclones with a 3D effect This computer-generated image is based on an infrared image of Jupiter’s north polar region that was acquired on February 2, 2017, by the Jovian Infrared Auroral Mapper (JIRAM) instrument aboard Juno during the spacecraft’s fourth pass over Jupiter. (Source: NASA/JPL-Caltech/SwRI/ASI/INAF/JIRAM) When I first glanced at the image above, I though ...read more

What Does Any Part of the Brain Do?

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How can we know the function of a region of the brain? Have we been approaching the problem in the wrong way? An interesting new paper from German neuroscientists Sarah Genon and colleagues explores these questions. According to Genon et al., neuroscientists have generally approached the brain from the standpoint of behavior. We ask: what is the neural basis of this behavioral or psychological function? Traditionally, assigning functions to brain regions has mainly been based on conceptualiza ...read more

Permafrost in coldest Arctic areas will melt faster than thought, releasing large amounts of greenhouse gases

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No, calamity is not imminent. But new findings offer worrisome insights into the ongoing transformation of the Arctic—and our planet. Collapsed permafrost block of coastal tundra on Alaska’s Arctic Coast. (Source: USGS) The coldest reaches of the Arctic on land were once thought to be at least temporarily shielded from a major — and worrisome — effect of a warming climate: widespread melting of permafrost. But a recent study suggests t ...read more

Wherever They Go, These Spiders Always Evolve the Same Way

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We often assume that evolution is entirely unpredictable. But, that's not always the case. Some evolutionary changes seem to be at least partly hardwired into a species' DNA. For an example, we can look to ecomorphs, species that occupy the same habitat and look generally alike, despite not being very closely related to each other. In some cases, species will repeatedly evolve the same characteristics as they move from one location to another, as if it were predestined.  Those Are the Op ...read more

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