Biologists show how plants turn off genes they don't need

A plant has one genome, a specific sequence of millions of basepairs of nucleotides. Yet how this genome is expressed can vary from cell to cell, and it can change as a plant goes through various life stages, from germination ...

Study links heart rate to gender gap in criminal offending

In the field of criminology, it is well established that men engage in more crime than women. Now, a new study from the University of Pennsylvania published in the journal Criminology, addresses the incomplete understanding ...

Fossil 'winged serpent' is a new species of ancient snake

An ancient sink hole in eastern Tennessee holds the clues to an important transitional time in the evolutionary history of snakes. Among the fossilized creatures found there, according to a new paper co-authored by a University ...

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