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AgricultureFrozen Assets
A U.S. gene bank has begun deep-freezing semen and other livestock 'seed' for possible future use in research or breeding.
By Janet Raloff -
Health & MedicineAssault on Autism
A shift in scientific thinking about what causes autism is prompting a closer look at potential environmental factors.
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PhysicsWhen all is a spin, calm is dragged in
When laboratory vortices are mixed to create the equivalent of a tornado in a hurricane, the "hurricane" may gobble up spots of calm from the outside world.
By Peter Weiss -
Health & MedicineMarker signals esophageal cancer
Silencing of the gene that encodes the cancer-suppressing protein APC is common in people with esophageal cancer, suggesting that physicians might use this genetic abnormality as a marker for the disease.