University of Pennsylvania

Evolution can select for evolvability, biologists find

Evolution does not operate with a goal in mind; it does not have foresight. But organisms that have a greater capacity to evolve may fare better in rapidly changing environments. This raises the question: does evolution favor ...

Nov 14, 2013
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Researchers Unlock Molecular Origin of Blood Stem Cells

(PhysOrg.com) -- A research team led by Nancy Speck, PhD, Professor of Cell and Developmental Biology at the University of Pennsylvania School of Medicine, has identified the location and developmental timeline ...

Jan 09, 2009
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Gene therapy improves vision

German scientist Paul Ehrlich found what he coined the "magic bullet" in the early 20th century upon developing the world’s first effective treatment of syphilis.

Nov 23, 2009
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