POLL RESULT Only 5% of voters think Australia's conservation efforts to protect native bird species are sufficient, while 70% of respondents say the country needs to ramp up its efforts, and that the current rate of species decline is unacceptable for a developed nation. A quarter of voters say efforts would be best targeted at the most critically endangered species. View the full results and add your comments. NEW POLL: Do you believe the U.S. government when it says it has never had any contact with alien life? Have your say.
TOP NEWS | Scientists have proposed that the Moon's ancient magnetic field was powered by mechanically driven motions within its fluid core that may have occurred continuously or been triggered by asteroid impacts. | | Early human cave art may be more fact than fiction, says a new study suggesting that some Palaeolithic cave paintings constitute accurate reflections of the natural world. | | By comparing the brains of monkeys living in large groups to those living in smaller groups, scientists have found that the brain can change shape to accommodate social network size. | | A species of Australian eucalyptus possesses spectacular water-repelling and self-cleaning properties that could have an array of practical applications, researchers have discovered.
| | Most obese people who lose weight due to dieting regain the majority of it back within a few years, and researchers have pinned the cause on the hormones that regulate body weight. | | Even when asleep, portions of our brains associated with the planning and execution of a particular movement 'light up', according to new research into lucid dreamers.
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IN FOCUS I'VE BEEN RESEARCHING the praying mantis this week and was surprised to find that if you're trying to find information about particular species, such as the wonderfully named Mega mantis, you'll most often be stuck with a sentence from Wikipedia and whatever you can glean from a forum conversation between collectors. It seems odd that they're not more widely researched because they truly are one of the more fascinating insects. Another surprise that came out of my research was the story behind the mythology of the females' gory courting habits. Everyone knows the myth - that females regularly decapitate and eat the head of their mate either before, during or after sex - and it's stuck, even 20 years after it was conclusively disproved. It's so well known, in fact, that the idea of a cannibalistic man-eater mantis has been appropriated by the Internet as a crazy, jealous girlfriend meme. See here, here and then again when it goes meta.
The first recorded instance of sexual cannibalism in mantids appears in a German text from 1658, when scientific research into the insect was just beginning. READ MORE>> THIS WEEK'S FEATURES | Six volunteers have stepped back into the outside world after spending the last 18 months locked in an isolation module in Moscow to simulate the effects of a return trip to Mars. | | Did the Sun once take a wayward journey nearer to the galaxy's centre? Bas den Hond explores the possibility, and asks whether remote planet-like objects on the fringes of our Solar System hold the answer. | THIS WEEK'S FICTION | The end of the world wasn't zombies. Actually, she was a blonde. | THIS WEEK'S BLOGS | Georgia gets the inside scoop from Dr Karl, and has a new, not-so-attractive love interest.
| | Summer is in the air, and with it comes the science behind why a cool breeze can be the life of the party at COSMOS. | | How did the female praying mantis become the cannibalistic man-eater we know she isn't? | THIS WEEK'S PROFILES | Everybody gets food cravings, but some people have cravings so extreme that they can lead to serious eating disorders. That's where Eva Kemps comes in. | | When it comes to mainstream, consumer-friendly developments in iPhone batteries and drug delivery to cancer cells, physical chemist Jian Liu proves that particle research is no small matter. | THIS WEEK'S REVIEWS | Covering everything from why planes take off into the wind to how jet-lag works on your body, this scientific breakdown of your flight into small components will give you the big picture on your next airborne journey.
| | Keep up-to-date with astronomical sightings and star trivia while interactively learning about the night sky with this app, which will transfix the inner stargazer in all of us and comes ready for download to the iPhone or iPad.
| World-renowned polymer scientist Professor Dame Julia Higgins at Chemfest 2011 (WA) Professor Higgins whose research explores the boundaries between materials chemistry and engineering through neutron scattering techniques will talk about our world of synthetic polymers. It’s hard to imagine a world without synthetic polymers for packaging, clothing, transport, sport – the list is endless! Chemfest, part of IYC2011, will be held on Saturday 12 November 2011. This free public event will provide an opportunity for the Perth community to explore chemistry in everyday lives. For more information click here. CURRENT ISSUE IN STORE NOW! Three things you should know about the genetically modified food that could soon hit supermarket shelves: and prepare to be surprised. We go behind the scenes of pioneering research and find out why GM foods polarise debate. Plus, with an expected world population of nine billion in 2050, how will we feed the planet? From synthetic meat to insects, we review some of the weird and innovative solutions. Stunning images, the origin of sex, where civilisation and farming began and the extreme speeds of the fastest objects in the universe are but a few of the tempting morsels for your mind this issue. Bon appetit! Order your copy now! Read the digital edition immediately, or have a print edition sent to you. | | Poll Do you think Australia is doing enough to protect its native birds? Yes, conservation efforts are strong and some bird species have fared well 5% No, this rate of species decline is unacceptable for a developed nation 70% Maybe, perhaps efforts need to focus on the most critically endangered birds 25% |
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