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One Gene, Many Mutations: Key That Controls Coat Color in Mice Evolved Nine Times
March 14, 2013 — Scientists have shown that changes in coat color in mice are the result not of a single mutation, but many separate mutations, all within a single gene. The results start to answer one of the ... > full story -
DNA Study Clarifies How Polar Bears and Brown Bears Are Related
March 14, 2013 — A new genetic study of polar bears and brown bears upends prevailing ideas about the evolutionary history of the two ... > full storyMore: -
Five-Million-Year-Old Saber-Toothed Cat in Newly Discovered Genus Discovered in Florida
March 14, 2013 — A new genus and species of extinct saber-toothed cat has been discovered in Polk County, Florida. The 5-million-year-old fossils belong to the same lineage as the famous Smilodon fatalis from the La ... > full story -
Strange Spaghetti-Shaped Creature Is Missing Link: Discovery Pushes Fossil Record Back 200 Million Years
March 13, 2013 — Canada's 505 million year-old Burgess Shale fossil beds, located in Yoho National Park, have yielded yet another major scientific discovery -- this time with the unearthing of a strange ... > full storyMore: -
Untangling Life's Origins
March 11, 2013 — Researchers have been using bioinformatics techniques to probe the world of proteins for answers to questions about the origins of ... > full story -
Genetic Study of House Dust Mites Demonstrates Reversible Evolution
March 8, 2013 — In evolutionary biology, Dollo's law states that evolution is unidirectional and irreversible. But this "law" is not universally accepted and is the topic of heated debate among biologists. Now a ... > full story -
Light Shed on Ancient Origin of Life
March 7, 2013 — Researchers discovered important genetic clues about the history of microorganisms called archaea and the origins of life itself in the first ever study of its kind. Results of their study shed light ... > full story -
Siberian Fossil Revealed to Be One of the Oldest Known Domestic Dogs
March 6, 2013 — Analysis of DNA extracted from a fossil tooth recovered in southern Siberia confirms that the tooth belonged to one of the oldest known ancestors of the modern ... > full story -
Human Y Chromosome Much Older Than Previously Thought
March 5, 2013 — The discovery and analysis of an extremely rare African American Y chromosome push back the time of the most recent common ancestor for the Y chromosome lineage tree to 338,000 years ago. This time ... > full story -
New Fossils of Crocodilian, Hippo-Like Species from Panama
March 5, 2013 — Paleontologists have discovered remarkably well-preserved fossils of two crocodilians and a mammal previously unknown to science during recent Panama Canal excavations that began in ... > full storyMore:
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