SA18-09.pdf

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SEPTEMBER 2018
VO LU M E 3 1 9, N U M B E R 3
SPECIAL
ISSUE
A
SI
NGULAR
SPECIES:
THE
SCIENCE
OF
BEING
HUMAN
PAGE
2 8
PART 1
PART 2
PART 3
Why
Us
?
32 An Evolved Uniqueness
How humans became singular
animals.
By Kevin Laland
Us and
Them
64 Last Hominin Standing
Why did
Homo sapiens
alone
survive to the modern era?
By Kate Wong
Beyond
Us
82 Darwin in the City
Humans are changing
the course of evolution.
By Menno Schilthuizen
40 Techno
Sapiens
The internal-combustion engine
reveals our collective genius.
By Lewis Dartnell, José Miguel
Mayo and Matthew Twombly
70 The Origins of Morality
How we learned to put our
fate in one another’s hands.
By Michael Tomasello
88 Our Digital Doubles
AI will serve our species,
not control it.
By Pedro Domingos
42 Inside Our Heads
Creation of the human mind.
By Thomas Suddendorf
76 Why We Fight
A close look at the archaeological
record suggests war may not be
in our nature after all.
By R. Brian Ferguson
94 Alone in the Milky Way
Why we are most likely the
only intelligent civilization
in the galaxy.
By John Gribbin
48 The Hardest Problem
Decoding the puzzle of
human consciousness.
By Susan Blackmore
54 Talking through Time
What makes language distinctly
human.
By Christine Kenneally
60 Are We Wired Differently?
Tracing the evolution of the
human brain’s most distinctive
features.
By Chet C. Sherwood and
Mesa Schumacher
ON THE COVE R
The mix of an outsized brain and hypersocial
culture explains humans’ unparalleled success.
Illustrations by Victo Ngai, Yuko Shimizu and Armando Veve
September 2018, ScientificAmerican.com
1
© 2018 Scientific American
4 From the Editor
6 Letters
10 Science Agenda
We ignore racial and ethnic minorities in clinical trials
at our own peril.
By the Editors
11 Forum
The sex-specific risks of Alzheimer’s point to targeted
interventions for men and women.
By Rebecca Nebel
12 Advances
Extinct dogs were bone crushers. Fending off art-
eating fungi. A little oil could keep wine yeasts alive.
Toward personalized colon cancer screenings.
00
10
24 The Science of Health
The “Right to Try” law raises false hope for the very sick.
By Claudia Wallis
27 TechnoFiles
Think you know hearing aids?
By David Pogue
100 Recommended
Seaweed as a resource. Racing to build an artificial heart.
Astrophysics powers military might. Driverless cars
make good.
By Andrea Gawrylewski
101 Skeptic
Education and birth control are slowly making the
politics of abortion less relevant.
By Michael Shermer
00
12
102 Anti Gravity
Examining the outsized influence of beavers on America.
By Steve Mirsky
103 50, 100 & 150 Years Ago
104 Graphic Science
Even with social media, we have only 150 real friends.
By Mark Fischetti and Jen Christiansen
ON THE WEB
Microplastics Threat
Scientific American
examines researchers’ efforts to
locate microplastics pollution and to stem the tide of
these particles entering the environment.
Go to www.ScientificAmerican.com/sep2018/microplastics
00
27
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2
Scientific American, September 2018
© 2018 Scientific American

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