Findings are a major step toward understanding persistent infections that affect people with cystic fibrosis
Led by scientists at UCLA, an international team of researchers has discovered that bacteria have a “memory” that passes sensory knowledge from one generation of cells to the next, all without a central nervous system or any neurons.(more…)
The gravity of the world’s current extinction rate becomes clearer upon knowing what it was before people came along. A new estimate finds that species die off as much as 1,000 times more frequently nowadays than they used to. That’s 10 times worse than the old estimate of 100 times.
PROVIDENCE, R.I. [Brown University] — It’s hard to comprehend how bad the current rate of species extinction around the world has become without knowing what it was before people came along. The newest estimate is that the pre-human rate was 10 times lower than scientists had thought, which means that the current level is 10 times worse. (more…)