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Seals Slide toward Extinction in Hawaiian Reserve

By Nicola Jones of Nature magazine Endangered seals in a marine protected area are heading towards local extinction, even while the same species thrives in an unprotected area nearby. [More]

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Fatherhood Lowers Testosterone, Keeps Dads at Home

Men may not go on a hormonal rollercoaster with their pregnant partners, but once the baby shows up, their bodies biologically transition into "daddy mode," suggests a new study finding that levels of testosterone, the "macho" sex hormone, drop in new fathers. "Men are, to a certain degree, hardwired to take care of their kids," study researcher Lee Gettler, of Northwestern University in Chicago, Illinois, told LiveScience. "This is important because traditional models of human evolution have portrayed women as the gatherers that take care of the kids and stay behind." [More]

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‘Super-Earth,’ 1 of 50 Newfound Alien Planets, Could Potentially Support Life

More than 50 new alien planets -- including one so-called super-Earth that could potentially support life -- have been discovered by an exoplanet-hunting telescope from the European Southern Observatory (ESO). The newfound haul of alien planets includes 16 super-Earths , which are potentially rocky worlds that are more massive than our planet. One in particular - called HD 85512 b - has captured astronomers' attention because it orbits at the edge of its star's habitable zone, suggesting conditions could be ripe to support life

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