Scientific American - Full Year 2013 Issues (March)

HUMAN EVOLUTION
36  The Origins of Creativity
New evidence that our ancient ancestors were
exceedingly ingenious is forcing scientists
to reconsider when we started thinking outside
of the box. By Heather Pringle
ASTROPHYSICS
44  The Inner Life
of Star Clusters
Stars are born in groups, then slowly disperse
into space. A new theory explains how these
groups form and fall apart or, in rare cases,
persist for hundreds of millions of years.
By Steven W. Stahler
PLANT BIOLOGY
52  The End of Orange Juice
A devastating disease is killing citrus trees
from Florida to California. By Anna Kuchment
TECHNOLOGY
60  Flight of the RoboBees
Thousands of robotic insects will soon take to the skies
in pursuit of a shared goal.
By Robert Wood, Radhika Nagpal and Gu-Yeon Wei
EMERGING DISEASES
66  New Threat from Poxviruses
Smallpox may be gone, but its viral cousins—monkeypox
and cowpox—are staging a comeback. By Sonia Shah
FORENSICS
 72  The Government Wants Your DNA
Cops are amassing DNA evidence collected during
criminal investigations, a practice that endangers
civil liberties. By Erin Murphy
BIOENGINEERING
 78  A Dolphin’s Tale
A bottlenose named Winter lost her tail to a crab trap.
So scientists built her a new one. By Emily Anthes

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