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Latest Philosophy of biology Stories

X-ray Tomography On An Embryo Of A Living Frog
2013-05-16 14:51:20

Karlsruhe Institute of Technology Classical X-ray radiographs provide information about internal, absorptive structures of organisms such as bones. Alternatively, X-rays can also image soft tissues throughout early embryonic development of vertebrates. Related to this, a new X-ray method was presented recently in a Nature article published by a German-American-Russian research team led by KIT. For periods of about two hours, time-lapse sequences of cellular resolution were obtained of...

Untangling The Branches Of The Tree Of Life
2013-05-15 10:33:57

Vanderbilt University These days, phylogeneticists — experts who painstakingly map the complex branches of the tree of life — suffer from an embarrassment of riches. The genomics revolution has given them mountains of DNA data that they can sift through to reconstruct the evolutionary history that connects all living beings. But the unprecedented quantity has also caused a serious problem: The trees produced by a number of well-supported studies have come to contradictory...

Study Proves Darwin's Theory That Productivity Increases Species Diversity
2013-05-14 06:49:07

April Flowers for redOrbit.com - Your Universe Online Charles Darwin predicted that a plot of land growing distantly related grasses would be more productive than a plot with a single species of grass in On The Origin of Species, first published in 1859. Over 150 years later, a new study from the University of Toronto Scarborough (UTSC), reveals Darwin was right; environments containing species that are distantly related to one another are more productive than those containing closely...

Carnivorous Plant Gets Rid Of Its Junk DNA
2013-05-13 11:22:44

Brett Smith for redOrbit.com — Your Universe Online There are approximately 3 billion base pairs in the human genome, however, only about 2 percent of those are actual genes. The rest is considered ℠junk´ DNA. For years, scientists have puzzled over the question of why so much of the human genome appears to be useless, and a new study on a bizarre wetland plant could be the key to solving the genetic mystery. Utricularia gibba is a carnivorous plant that...

It's In The Genes: Europeans Have Been One Big Family For Past Thousand Years
2013-05-08 07:34:50

Lawrence LeBlond for redOrbit.com - Your Universe Online If there is one thing you can say about families, it is the larger the better. And by looking at genetic data of people from Ireland to the Balkans, researchers have found that Europeans are one big family, and have been for the past thousand years. Graham Coop, a professor of evolution and ecology at UCDavis, and Peter Ralph, a professor at University of Southern California (USC), published a recent study of the genetics of...

2013-05-01 12:35:26

Cooperative behaviour is widely observed in nature, but there remains the possibility that so-called 'cheaters' can exploit the system, taking without giving, with uncertain consequences for the social unit as a whole. A new study has found that a yeast colony dominated by non-producers ('cheaters') is more likely to face extinction than one consisting entirely of producers ('co-operators'). The findings, published April 30 in the open access journal PLOS Biology by Alvaro Sanchez and Jeff...

2013-04-30 23:21:18

A team of researchers at the University of Massachusetts Amherst is proposing a new investigative roadmap for the field of evolutionary developmental biology, or “evo devo,” to better understand how innovation at the genetic level can lead to ecological adaptations over time. Evo devo seeks to understand the specific genetic mechanisms underlying evolutionary change. Seven UMass Amherst authors, all biologists but with diverse research programs including evolutionary genetics,...

2013-04-24 16:37:27

DNA sequenced from ancient skeletons sheds light on how modern European populations formed An international team of scientists, including Dr Paul Brotherton from the University of Huddersfield, reveal that events after the initial migration of farmers into Europe had a major impact on the modern gene pool. The paper, published in Nature Communications, investigates a major component of the maternal population history of modern Europeans by focusing on haplogroup H mitochondrial genomes...

Researchers Use Pitcher Plants To Identify Signs Of Trouble Dead Ahead
2013-04-24 12:13:10

National Science Foundation In one drop of water are found all the secrets of all the oceans. --- Kahlil Gibran What do a pond or a lake and a carnivorous pitcher plant have in common? The water-filled pool within a pitcher plant, it turns out, is a tiny ecosystem whose inner workings are similar to those of a full-scale water body. Whether small carnivorous plant or huge lake, both are subject to the same ecological "tipping points," of concern on Earth Day--and every day, say...

2013-04-16 08:33:56

AUSTIN, Texas, April 16, 2013 /PRNewswire-iReach/ -- Dr. Falk Huettmann, a wildlife ecologist and professor at the University of Alaska-Fairbanks, is giving an oral presentation at the US Regional Association of the International Association for Landscape Ecology (US-IALE) 2013 Annual Symposium in Austin, Texas where he will share how predictive analytics has assisted his findings in a presentation titled "Status of Landscapes and Ecology at the Three Poles (Arctic, Antarctic and Hindu...