Like an armada of small rototillers, female salmon can industriously churn up entire stream beds from end to end, sometimes more than once, using just their tails.

New research at UT Southwestern Medical Center shows that on a biochemical level, hormone-like molecules in tiny worms called nematodes work similarly to the way in which certain hormones work in humans – findings that one day may help eradicate worm infections that afflict a third of the world's population.

A New York University College of Dentistry professor has developed a calcium phosphate-based supplement that -- even at low concentrations -- significantly improves bone strength and thickness without the side effects of many current drug treatments. Dr. Racquel Z. LeGeros, a Professor of Biomaterials and Biomimetics and of Implant Dentistry, presented her research on the supplement at the American Association for Dental Research annual meeting on March 9, 2006.

Researchers at MIT and Harvard Medical School have identified a compound that interferes with the pathogenic effects of Huntington's disease, a discovery that could lead to development of a new treatment for the disease.

Ronald Woodard's team set out looking for a way to kill a stubborn type of bacteria and they succeeded---but not in the way he expected.