The activity of one type of immune cell helps regrow the limbs of amputated salamanders.
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The essential nutrient can kill drug-resistant Mycobacterium tuberculosis by producing oxidative radicals that damage DNA.
Viruses that attack bacteria may be an important component of our gut microbiota.
The Asian harlequin ladybird carries a biological weapon to wipe out competing species.
Symbiotic fungi on the roots of bean plants can act as an underground signaling network, transmitting early warnings of impending aphid attacks.
Researchers track DNA modifications and gene expression in stem cells as they differentiate.
A molecule found only in the blood of young mice dramatically reverses thickening and stiffening of the heart muscle in old mice.
The decline of a population of Arctic foxes isolated on a small Russian island may be due to mercury pollution from their diet of seabirds and seals.
Christian de Duve chose to be euthanized at home in Belgium at age 95.
As telomeres shorten with age, genes as far as 1,000 kilobases away could be affected, including one responsible for an inherited muscle disease.
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