Zodiac

* Sense of direction may be innate:
New research suggests the brain comes hard-wired
with working navigational cells.

http://www.world-science.net/othernews/100616_direction


* Ocean covered a third of Mars, study concludes:
An ancient ocean was probably part of an Earth-like
water cycle that included rain, scientists say.

http://www.world-science.net/othernews/100612_mars


* Study points to why stress may affect women 
more:
Studying rat brains, researchers found that females
are more sensitive than males to low levels of a
stress hormone.

http://www.world-science.net/othernews/100616_stress


* "Trust hormone" may drive aggression 
between groups:
The compound oxytocin's well known role in social
relationships may also extend to promoting group
defense, a study suggests.

http://www.world-science.net/othernews/100615_oxytocin


* Neighborhood violence may impair kids' 
thinking:
Local violence may impair a child's ability to
think, even if he or she didn't see the violence
directly, a study finds.

http://www.world-science.net/othernews/100614_violence



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