1.   An apparent swelling in one region of the brain, scientists said, suggested that the Homo erectus was developing the potential for language and speech.

2.   And conditions there are much more variable than previously believed, scientists said Tuesday.

3.   As a result, say scientists, they have difficulty recovering from heavy fishing pressure.

4.   Blood levels of receptors for the chemical neurotransmitter dopamine appear to accurately reflect the presence of the mental disorder, say Israeli scientists.

5.   A dying spacecraft making a last attempt to capture scientific data has produced the best look ever at the glowing heart of a comet, scientists said Tuesday.

6.   But the major driving force behind the shift, say political scientists, is suburban sprawl and the conservative attitudes it spawns.

7.   Chemical analysis has shown several indications that point strongly toward the interpretation that these shapes are fossils of ancient Martian creatures, the scientists said.

8.   Chemicals called chemokines, secreted by immune system cells, are thought to combat the lethal virus, say scientists.

9.   Close-up pictures of both moons, say planetary scientists, have the potential to prove the existence of a liquid ocean, if they show freshly cracked ice.

10.   Drinking coffee could protect people from radioactivity, say scientists in India.