Toward lab-grown designer babies

It gives new meaning to the vulgarity "a piece of tail." The latest way of divorcing baby-making from the old-fashioned method not only involves no sexual relations, it doesn't even involve eggs and sperm. At least at first.

Stem cells in plants and animals behave surprisingly similarly

A new study from Lund University in Sweden shows that the behaviour of stem cells in plants and animals is surprisingly similar. The researchers were able to produce mathematical equations that reveal very small differences ...

Video: The chemistry of redheads

St. Patrick's Day evokes thoughts of all things often associated with the Irish—including red hair. Chemically speaking, what sets redheads apart from the crowd is pigmentation—specifically melanins.

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