Test your smarts on the tenacious hagfish and your bodys newest organ

first_img Recognizes faces. Scientists long assumed that brain development over time was due almost entirely to “synaptic pruning,” or the weeding out of unnecessary connections between neurons. But now, a new study suggests that brain tissue in an area dedicated to facial recognition grows and develops well into adulthood, reaching peak proficiency at about the age of 30. The finding may help scientists understand the social evolution of our species, as speedy recollection of faces let our ancestors know at a glance whether to run, fight, or woo. Silkworm moths. We’ve all heard the stories about humans losing their jobs to robots. But what about man’s best friend? Drug-sniffing dogs may soon have a competitor in the workplace: an insect-piloted robotic vehicle that could help scientists build odor-tracking robots to find disaster victims, detect illicit drugs, and sense spills of hazardous materials. The car’s driver is a silkworm moth tethered in a tiny cockpit so that its legs can move freely over an air-supported ball, which moves it to its destination. The insect drivers, which used their odor-sensitive antennae to reach their targets, did so almost as quickly as carless moths. That means, say scientists, that one day moth-driven robot cars could replace drug-sniffing dogs, especially if they can be genetically modified to detect a wide variety of smells. Time to start polishing up those résumés, pooches! Processes new smells Iceland Enter for a chance to win. We’ll select a new winner each week. ffennema/istockphoto All along the gut. How many organs do humans have? Some stop counting at 78, but that number is highly debatable. Now, a group of researchers suggests adding one more: the mesentery, a fatty membrane that connects our intestines to the abdominal wall. Scientists long thought that the membrane was fragmented—broken up into tiny sections. But new research shows that it is, in fact, one continuous structure, upending nearly 100 years of anatomical science. But is that enough for it to get its own designation? If it isn’t, the researchers say that it also may have another function: shuttling white blood cells around the intestines. Controls inhibitions Homosexuals Honeyguides Free weddings Greenland Gibbons Dinosaurs Results: You answered out of correctly – Click to revisit Later this year, parts of Finland, the Netherlands, and Canada will turn into minilaboratories for randomized trials of what social welfare policy? In other space news, astronomers have finally found the location of a set of fast radio bursts (FRBs), mysterious cosmic flashes discovered nearly a decade ago. What is behind these flashes? No one knows. Universal basic income An error occurred loading the Quiz. Please try again later. Win a FREE digital subscription to Science! Just submit the required contact information to enter. Behind the gall bladder Click to enter Memorizes new Lady Gaga lyrics Antarctica January 09, 2017 They wriggle out thanks to their loose skin. Emily/Flickr Roma Which of these planets got no love from NASA when it selected its next set of low-cost missions? 0 Mercury Question Mars A new study suggests it took these creatures many months to hatch from their eggs, possibly dooming them to extinction: 0 / 10 Recently, a group of researchers said humans may have one more organ than doctors realized. Where is it located? Jamaica giant galliwasps Top Ranker Pulsars at the center of the Milky Way In front of the thyroid They slime their way out of its hold. Dinosaurs. Scientists used to think that dinosaur eggs, like those of modern birds (their closest living relatives), hatched relatively quickly. But a new study of baby dinosaur teeth suggests that their eggs instead took between 3 and 6 months to hatch, twice as long as predicted. Those long times probably made it impossible for them to outcompete animals that reproduced faster than they did—like birds and mammals—after the asteroid strike that produced the world’s most well-known mass extinction. Take note, Hatchimals! How did you score on the quiz? Challenge your friends to a science news duel!center_img All along the gut How do hagfish evade a shark’s bite? Human infants Free housing January 09, 2017 The Science Quiz Take the quiz to enter for a chance to win a FREE digital subscription to Science! Learn More Universal basic income. The policy, which has its modern-day origins in post–World War II America and Britian, has enjoyed a recent resurgence, with governments from Oakland, California, to Ontario, Canada, launching experiments to find out how it could affect employment, taxes, and even health outcomes. A basic income is a guaranteed, regular sum of money paid from the government to citizens. The last time an experiment on this scale was run was in Manitoba, Canada, in the 1970s. Its findings? Scientists are still working on it. The Science Quiz tests your knowledge of the week’s biggest science news stories. No matter how much you know, you’re still likely to learn something–give it a try! Score Universal child care Enter the information below to enter the sweepstakes:Your information has been submitted.An error occurred submitting the email. Please try again later.This email has already been entered.The email submitted is not a valid email.Incomplete form. Please fill out all fields. 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I would like to receive emails about products and services offered by AAAS advertisers.PRIVACY I have read and accept the Terms of Service and Privacy Policy.Submit Recognizes faces The Science Quiz Official rules for the News from Science weekly quiz sweepstakes Share your score Surprisingly, a part of the brain that does this has been found to grow and develop into our early 30s: They shoot tiny bursts of electricity. Antarctica. Scientists have monitored a growing rift in that continent’s Larsen C ice shelf with increasing anxiety, especially after the breakup of the Larsen A shelf in 1995 and the sudden collapse of Larsen B in 2002. Now, it looks like Larsen C may be poised for its own big break: The 115-kilometer long rift, which is 100 meters wide and half a kilometer deep, grew by another 18 kilometers in December. If the ice breaks loose (which scientists say is likely in the coming weeks), it could form one of the largest icebergs ever recorded. By itself, that wouldn’t lead to a rise in sea levels—icebergs float, after all. But if the shelf collapses further, “unplugging” the glaciers that it currently holds back, sea levels around the world could one day rise by as much as 10 centimeters. The disabled Average Jews They twist themselves up in knots. Time’s Up! A new initiative in Germany will soon reconstruct the biographies of Nazi victims used in brain research. Who were most of those victims? The disabled. During World War II, the Nazi regime systematically killed at least 200,000 people it classified as mentally ill or disabled. Now, a new initiative is seeking to reconstruct the biographies of victims used in brain research. The Max Planck Society (MPG) will open its doors to four researchers who will scour its archives and tissue sample collections for material related to the program. The project’s impetus is MPG’s desire to take moral responsibility for unethical research that its forerunner, the Kaiser Wilhelm Society, conducted on the victims and their remains. Venus. No one said love was easy! The second planet from the sun got the shaft once again when NASA scientists dropped two potential missions to Venus last week in favor of two to mysterious asteroids. In the latest efforts funded by NASA’s Discovery Program, the Lucy spacecraft will hurtle toward Jupiter’s Trojan asteroids in 2021, and another called Psyche will launch in 2023 to orbit a large metallic asteroid of the same name. Little is known about either target, and scientists hope the visits will shed light on the early formation of our solar system. Meanwhile, Venus scientists are banking on one more funding opportunity: the New Frontiers mission, which NASA will decide by November 2017. If that fails, it could be another decade before the agency returns to Venus, a planet that it last visited in the early 1990s. Voyager’s Golden Record In the skull Distant antimatter explosions You Scientists recently taught this animal to drive a car, in a bid to create robots that would replace drug-sniffing dogs: They wriggle out thanks to their loose skin. Hagfish, a jawless, eellike fish that ties itself into pretzel-like twists to tear apart its dinner, are creatures best known for their slime, which gums up the gills of any predator who tries to eat them. But scientists witnessing a shark-on-hagfish attack have discovered that it’s neither slime nor knots that defeat a lunging shark. Instead, it’s droopy hagfish skin. Because their skin is only loosely connected to their internal muscles and organs, hagfish skin isn’t pierced when predators try to sink in their teeth. Instead, the skin just folds around the attackers’ teeth, giving the organs ample room to move out of harm’s way. Emus LOADING A chunk of ice the size of Delaware may soon split off the northernmost ice shelf of this place: Dodos Jupiter Venus The faster you answer, the higher you score! Challenge your friends and sign up for your chance to win a free digital subscription to Science. Canada Start Quiz Silkworm moths No one knows. Every day, space is filled with thousands of bursts of radio energy, enormous flashes that pack as much energy into a few milliseconds as the sun emits in all its wavelengths in half a day. Now, scientists know where some of them are coming from: a surprisingly small galaxy more than 3 billion light-years away. But they still don’t know what is causing them. In fact, there are more theories about FRBs than there are FRB signals, joked one of the lead authors on the paper. Among those theories: colliding neutron stars or neutron stars being eaten by black holes.last_img

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