In The News
Features
9
5 STORY ONE
s Ice age refuges may have
fostered Homo speciation
8 GENES & CELLS
s Women might replenish eggs
18 FURRY FRIENDS FOREVER
COVER STORY: Having a best
bud may be as important
for other animals as it is for
humans.
By Susan Gaidos
9 ATOM & COSMOS
s Light echoes give clues to
star’s eruption
s Report of speedy neutrinos
clouded by faulty equipment
22 VISIONS FOR ALL
Often considered a sign
of psychosis, hallucinations
can occur among healthy
people, too.
By Bruce Bower
10 SCIENCE & SOCIETY
s Teens win big at 2012 Intel
Science Talent Search
Essay
15
11 EARTH
s Twisted San Andreas complicates earthquake forecasts
s Less Arctic sea ice means
more Northern Hemisphere
snow
26 BITS OF REALITY
Quantum information offers
deep insights into the nature
of the physical world.
By Tom Siegfried
Departments
12 HUMANS
s Pi guy’s memory magic
s Jordan huts predate farming
2 FROM THE EDITOR
4 NOTEBOOK
30 BOOKSHELF
13 MATTER & ENERGY
s Deleting a memory requires
energy
s Fourth hydrogen phase found
31 FEEDBACK
22
32 FROM THE ARCHIVE
Ongoing controversy over a
hobbitlike hominid.
14 LIFE
s Waves create coral clones
s Fish regrows lost limbs
s A sawfish’s saw doesn’t
s Ancient fruit sprouts new
growth
26
16 BODY & BRAIN
s Sugar combo boosts insulin
s Sleepless nights cause jumpy
neurons
COVER Chimpanzees are among many non human primates and other animals that have shown evidence of forming mutu ally beneficial friendships. © Eureka/Alamy
www.sciencenews.org
April 7, 2012 | SCIENCE NEWS | 1
