New Fish Species May Emerge Because Of How Females See Males:
Eye colour and hair colour play a role in human partner choice, but visual stimuli can also determine mating preferences in the animal kingdom. In many species, the male's fortunes in the mating stakes are decided by a conspicuous breeding dress.
New Dinosaur Species, Pachyrhinosaur Lakustai, Had Bony Frill And Horns:
The fossils revealed a herd of dinosaurs that perished in a catastrophic event 72.5 million years ago. The animals are characterized by a bony frill on the back of the skull ornamented with smaller horns. They also had large bony structures above their nose and eyes which lends them their name: Pachyrhinosaurus (thick-nosed lizard). These structures probably supported horns of keratin.
Short RNAs Show A Long History: MicroRNAs Found In Animals That Appeared A Billion Years Ago:
MicroRNAs, the tiny molecules that fine-tune gene expression, were first discovered in 1993. But it turns out they've been around for a billion years.
Reducing Work Commutes Not Easy In Some Cities, Study Suggests:
Shorter work commutes are one way to reduce gasoline consumption, but a new study finds that not all cities are equal in how easy it would be to achieve that goal.
Religion Makes People Helpful And Generous -- Under Certain Conditions:
Belief in God encourages people to be helpful, honest and generous, but only under certain psychological conditions, according to University of British Columbia researchers who analyzed the past three decades of social science research.
Presidential Candidates' Health Plans Offer Divergent Approaches To Health System Reform:
A new report from The Commonwealth Fund examines key differences and areas of agreement in the health system reform proposals of presidential candidates Senator John McCain and Senator Barack Obama. In the report, The 2008 Presidential Candidates' Health Reform Proposals: Choices for America, the authors describe how both plans seek to expand health insurance, but Senator McCain would encourage individuals to select their own coverage through the individual insurance market while Senator Obama would strengthen employer coverage and public programs. As a result, the proposals differ in how many people would be covered, and the extent of financial protection for families against the cost of health care.
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