#First genome comparison gives insight into penguin origins, evolution

“#First genome comparison gives insight into penguin origins, evolution” Juliana Vianna of the Pontifical Catholic University of Chile among a group of rockhopper penguins. Credit: Juliana Vianna From the four-foot-tall emperor penguin to the aptly named foot-long little penguin, these unique flightless birds have invaded habitats from Antarctica to the equator, not to mention the…

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#Completing the set: ‘Coupon-collection behavior’ reduces sex-ratio variation among families

“#Completing the set: ‘Coupon-collection behavior’ reduces sex-ratio variation among families” Credit: CC0 Public Domain A new analysis of sibling records from more than 300,000 individuals suggests that some parents continue to reproduce until they have children of both sexes. The practice, which the two University of Michigan biologists who conducted the study dubbed “coupon-collection behavior”…

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#Neanderthal DNA contributes to genetic diversity, bringing more understanding to human evolution

“#Neanderthal DNA contributes to genetic diversity, bringing more understanding to human evolution” Credit: C0 Public Domain The advent of DNA sequencing has given scientists a clearer insight into the interconnectedness of evolution and the web-like path that different organisms take, splitting apart and coming back together. Tony Capra, associate professor of biological sciences, has come…

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#Remote islands: Stepping stones to understanding evolution

“#Remote islands: Stepping stones to understanding evolution” The scientists used Winkler traps to extract the trap-jaw ants out of leaf litter into flasks of ethanol. Credit: OIST For millions of years, remote islands have been hotbeds of biodiversity, where unique species have flourished. Scientists have proposed different theories to explain how animals and plants colonize…

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