BlogArena

General blog about anything and everything of everyday's life.

February 9, 2013
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Placental Mammal Diversity Blossomed After Age of Dinosaurs

Scientists build new ‘tree of life’ for placentals, visualize common ancestor Scientists have reconstructed the common ancestor of placental mammals–an extremely diverse group including animals ranging from rodents to whales to humans–using the world’s largest dataset of both genetic and … Continue reading

October 10, 2012
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Cambrian Fossil Pushes Back Evolution of Complex Brains

Complex brains evolved much earlier than previously thought, as evidenced by a 520-million-year-old fossilized arthropod with remarkably well-preserved brain structures. The remarkably well-preserved fossil of an extinct arthropod shows that anatomically complex brains evolved earlier than previously thought and have … Continue reading

March 19, 2011
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Human Prejudice Has Ancient Evolutionary Roots

The tendency to perceive others as “us versus them” isn’t exclusively human but appears to be shared by our primate cousins, a new study led by Yale researchers has found.  In a series of ingenious experiments, Yale researchers led by … Continue reading