<p></p><p>The cause of menopause. A new body part? Remote-controlled cockroaches! Science brought us so super-cool stories this week.</p><p>Check these out.</p>
Men may be cause of menopause
<p> Ladies, here's one more thing you can blame on men: menopause. At least, that's according to a new theory.</p>
<p> Women go through menopause because men have consistently preferred younger women in recent evolutionary history, according to a study published today (June 13) in the journal PLOS Computational Biology. Thus, menopause is not evolutionarily advantageous and may be the result of a series of random, harmful mutations that accumulated in women but weren't acted on by evolution because the women had already reproduced by the time the mutations affected them.</p>
<p>[Full Story: <a href="http://www.livescience.com/37430-male-preference-younger-women-menopause.html" target="_blank">
Hot Flash! Men May Be Cause of Menopause
New body part discovered
<p> Scientists have discovered a previously unknown layer lurking in the human eye.</p>
<p> The newfound body part, dubbed Dua's layer, is a skinny but tough structure measuring just 15 microns thick, where one micron is one-millionth of a meter and more than 25,000 microns equal an inch. It sits at the back of the cornea, the sensitive, transparent tissue at the very front of the human eye that helps to focus incoming light, researchers say.
<p>[Full Story: <a href="http://www.livescience.com/37348-new-layer-discovered-in-human-eye.html" target="_blank">
New Body Part! Layer in Human Eye Discovered</a>]</p>
Extroverts & introverts explained
<p> Extroverts and introverts differ strongly in how their brains process rewarding experiences, new research suggests.</p>
<p> The study, published today (June 13) in the journal Frontiers in Human Neuroscience, found that extroverts are more likely to associate the rush of a feel-good brain chemical with the environment they are in at the time.
<p>[Full Story: <a href="http://www.livescience.com/37427-extroverts-have-different-brain-processes.html">Why Extroverts Like Parties and Introverts Avoid Crowds</a>]</p>
Paranoid thoughts are common
<p> In a week of revelations about secret government surveillance of phones and Internet activity, you might find yourself looking over your shoulder a little bit more often than usual. You're not alone, research suggests.</p>
<p> In fact, paranoid thoughts are relatively common among otherwise healthy people, according to a new study published this month in the British Journal of Psychiatry.
<p>[Full Story: <a href="http://www.livescience.com/37419-paranoid-beliefs-common.html" target="_blank">
Is Big Brother Watching? Paranoid Thoughts Common, Study Finds</a>]</p>
Lost opera found?
<p> Scientists have helped to restore Luigi Cherubini's opera "Médée" to its original glory.</p>
<p> A lost aria, or solo song, from the piece, which Cherubini apparently smudged out in spite more than 200 years ago, has been revealed by x-ray scans.
<p>[Full Story: <a href="http://www.livescience.com/37339-x-rays-reveal-lost-cherubini-aria.html" target="_blank">X-Rays Reveal Lost Aria in 200-Year-Old Opera</a>]</p>
<p> A project currently on Kickstarter would give supporters the tools to remote-control a cockroach using their smartphones.</p>
<p> Called RoboRoach, the project is billed as "the world's first commercially available cyborg" and comes from a group of educational researchers called Backyard Brains from Ann Arbor, Mich.
<p>[Full Story: <a href="http://www.livescience.com/37401-roboroach-smartphone-neuroscience.html" target="_blank">How to Control a Cockroach Using Your Smartphone</a>]</p>
Mappers tackle 'ninja' worlds
<p> Mapping the surface features of farflung alien planets is a tough task, as a simple example illustrates.</p>
<p> Rapidly spin a globe with black and white regions painted evenly on its surface. These distinct sections fade to a mottled grey when seen in certain orientations.
<p>[Full Story: <a href="http://www.livescience.com/37322-alien-planet-surface-mapping-challenges.html" target="_blank">
Alien-Planet Mappers Tackle 'Ninja' Worlds, Other Challenges</a>]</p>
Babies show sympathy for bully victims
<p> Babies may be able to show sympathy before their first birthday, according to a new study in which 10-month-olds preferred the victims rather than the aggressors in a bullying encounter.</p>
<p> The research, published Wednesday (June 12) in the journal PLOS ONE, is the first to find evidence of possible sympathy in children younger than toddlers, the researchers said. Sympathy is the feeling of concern for others.
<p>[Full Story: <a href="http://www.livescience.com/37394-babies-sympathy-development.html" target="_blank">
Babies Have Sympathy for Bully Victims, Study Suggests</a>]</p>
Dino poo headed to museum
<p> A rare hunk of poop from a <i>Tyrannosaurus rex</i> will soon be making its way to the Smithsonian Natural History Museum in Washington, D.C.</p>
<p> The fossilized poop was deposited about 65 million years ago in southwestern Saskatchewan, Canada, and is currently housed in the Royal Saskatchewan Museum. The feces contained bone fragments, possibly from a duck-billed dinosaur or a horned creature such as Triceratops. The shards of bone are still jagged, suggesting they hadn't been marinating in the T. rex long enough for stomach acid to wear them down.</p>
<p>[Full Story: <a href="http://www.livescience.com/37381-tyrannosaurus-rex-poo-to-smithsonian.html" target="_blank">
T. Rex Poo Headed to Smithsonian Museum</a>]</p>
Iceman mummy suffered head blow
<p> Ötzi the Iceman, Europe's oldest mummy, likely suffered a head injury before he died roughly 5,300 years ago, according to a new protein analysis of his brain tissue.</p>
<p> Ever since a pair of hikers stumbled upon his astonishingly well-preserved frozen body in the Alps in 1991, Ötzi has become one of the most-studied ancient human specimens. His face, last meal, clothing and genome have been reconstructed — all contributing to a picture of Ötzi as a 45-year-old, hide-wearing, tattooed agriculturalist who was a native of Central Europe and suffered from heart disease, joint pain, tooth decay and probably Lyme disease before he died.
<p>[Full Story: <a href="http://www.livescience.com/37311-otzi-iceman-death-clues.html" target="_blank">
Iceman Mummy Suffered Head Blow Before Death</a>]</p>
Lost fossil world unlocked
<p> With just two inhabited buildings and a population of five, Fossil, Wyo., is all but a ghost town today. But as far as ghosts go, the ones at Fossil are pretty remarkable — 50-million-year-old monitor lizards, stingrays and freakishly long-tailed turtles among them.</p>
<p> Fossil showed promise of becoming a train-stop city during America's westward expansion. The town's real golden age, however, may have been the early Eocene, when it was covered in a subtropical lake with an incredible diversity of aquatic life, surrounded by lush mountains and active volcanoes.
<p>[Full Story: <a href="http://www.livescience.com/37276-lost-world-found-at-fossil-lake.html" target="_blank">
Lost World Locked in Stone at Fossil Lake</a>]</p>