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What’s Mighty About the Mouse? For Starters, Its Massive Y Chromosome

An exhaustive effort to sequence the mouse Y chromosome reveals a surprisingly large and complex biological beast, at the same time providing remarkable insight into a heated battle for supremacy between mammalian sex chromosomes.

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Study Finds Saving Lonely Species Is Important for the Environment

Joe Bailey looked at endemic eucalyptus found in Tasmania. They discovered that these rare species have developed unique characteristics to survive, and that these characteristics may also impact the survival of its neighbors in the ecosystem.

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Scripps Research Institute Scientists Make Enzyme that Could Help Explain Origins of Life

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Mimicking natural evolution in a test tube, scientists at The Scripps Research Institute have devised an enzyme with a unique property that might have been crucial to the origin of life on Earth.

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A Battle for Ant Sperm

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In a discovery new to science, research from the University of Vermont shows that sexual conflict between two ant species can drive an evolutionary battle, leading to competing adaptations in which female ants of one species manhandle sperm away from the unwitting males of a different species.

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NUS Researchers Discover for the First Time That a Rare Bush Frog Breeds in Bamboo

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Researchers from the National University of Singapore (NUS) have discovered a new reproductive mode in frogs and toads - breeding and laying direct developing eggs in live bamboo with narrow openings - which was observed in the white spotted bush frog (Raorchestes chalazodes). This critically endangered frog is currently only one of two species known to adopt this novel reproductive strategy. The findings were published in The Linnean Society of London’s Biological Journal of the Linnean Society, in October 2014.

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Ebola’s Evolutionary Roots More Ancient Than Previously Thought

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A new study is helping to rewrite Ebola’s family history. It shows that Ebola and Marburg are each members of ancient evolutionary lines, and that these two viruses last shared a common ancestor sometime prior to 16-23 million years ago.

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Life

Social and Behavioral Sciences

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‘Red Effect’ Sparks Interest in Female Monkeys

Recent studies showed that the color red tends increase our attraction toward others, feelings of jealousy, and even reaction times. Now, new research shows that female monkeys also respond to the color red, suggesting that biology, rather than our culture, may play the fundamental role in our “red” reactions.

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New U.Va. Study Upends Current Theories of How Mitochondria Began

Parasitic bacteria were the first cousins of the mitochondria that power cells in animals and plants – and first acted as energy parasites in those cells before becoming beneficial, according to a new University of Virginia study.

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Ancient Fossils Confirmed Among Our Strangest Cousins

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More than 100 years since they were first discovered, some of the world's most bizarre fossils have been identified as distant relatives of humans, thanks to the work of University of Adelaide researchers.

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Study Finds Crocodiles are Sophisticated Hunters

Vladimir Dinets, a research assistant professor in UT's Department of Psychology, has found that crocodiles work as a team to hunt their prey. His research tapped into the power of social media to document such behavior.

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