World Science: After anesthesia, 'primitive' consciousness awakens first
* After anesthesia, "primitive" consciousness
Brain structures that we share with many animals go
into action first as awareness emerges, research finds.
* Coupled stars seen as chief diet for hungry
Black holes at the hearts of galaxies may grow by
swallowing single stars from pairs of stars, a new
* Earth-like planets could number "billions" in
Red dwarf stars host an abundance of worlds that
could hold liquid water, astronomers report.
* Planets from long ago puzzle astronomers:
Scientists have identified a planetary system that
they describe as a likely survivor from one of the
earliest cosmic times.
* Link between fast food, depression "confirmed":
A new study supports past research tying fast food
consumption to a greater risk of depression.
* All cattle descend from one small herd, study
Living cattle descend from as few as 80 animals
domesticated from wild oxen in the Near East some
10,500 years ago, a DNA analysis suggests.
* 2nd study links pesticide to bee epidemic:
Mysterious collapses of honeybee populations may be
explained, scientists say.
* Dolphins may be dying due to U.S. oil spill,
Dolphins in the Gulf of Mexico are showing signs of
severe ill health, according to preliminary findings
from a U.S. agency.
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