In animals that reproduce by internal fertilization, as humans do, you'd think a penis would be an organ you couldn't really do without, evolutionarily speaking. Surprisingly, though, most birds do exactly ...
Jun 06, 2013
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When male superb lyrebirds sing, they often move their bodies to the music in a choreographed way, say researchers who report their findings in the Cell Press journal Current Biology on June 6. The findin ...
Jun 06, 2013
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White tigers today are only seen in zoos, but they belong in nature, say researchers reporting new evidence about what makes those tigers white. Their spectacular white coats are produced by a single change ...
May 23, 2013
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Nearly two-thirds of patients with high-risk neuroblastoma —a common tumor that forms in the nerve cells of children—cannot be cured using tumor-killing cancer drugs. A study published by Cell Press in the May 23 issue ...
May 23, 2013
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Plants can't swat a bug or run away from one, but that doesn't mean that plants can't fight back. Plants have evolved unique and sophisticated immune systems to defend themselves against insects and pathogens. ...
May 23, 2013
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