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Readers Respond to the February and March 2017 Issues

Letters to the editor from the February and March 2017 issues of Scientific American

Why the "You" in an Afterlife Wouldn't Really Be You

Memories, points of view and the self

Why the Most Powerful Treatment for Diabetes Turns Out to Be Surgery

Surgery that shortens intestines gets rid of the illness, and new evidence shows the gut—not simply insulin—may be responsible

Robust Emergency Fund Needed to Respond to Future Disease Outbreaks

But the U.S. can minimize the danger with a robust health emergency fund

Why Some Mice Seem to Make Bad Parents

A single gene is linked to nest building in mice

Is Dark Matter Made of Black Holes?

A hidden population of black holes born less than one second after the big bang could solve the mystery of dark matter

Should Artists Reveal How Much They Let Technology Make Creative Choices?

How much should an artist reveal about letting technology make some choices?

2 New Books Look at Evolution via Teeth and Tunnels

Two new books look at evolution from head to below your toes

How Driverless Cars Will Transform Cities

A moving web of sensor-laden vehicles and smart intersections will transform how we get around town

Tennessee's "Monkey Law" Finally Repealed, 50 Years Ago

Innovation and discovery as chronicled in Scientific American

Woman creates dream kitchen, but one mistake ruined everything

Despite the woman's upset, the comments were surprisingly supportive. "I actually love it," one viewer said.

Woman creates dream kitchen, but one mistake ruined everything

Despite the woman's upset, the comments were surprisingly supportive. "I actually love it," one viewer said.

Natural Disasters by Location: Rich Leave and Poor Get Poorer

Each big catastrophe like a hurricane increases a U.S. county's poverty by 1 percent, 90 years of data show

What in the World Was Macrauchenia?

Ancient DNA puts Darwin's mystery mammal in its place

Despite the woman's upset, the comments were surprisingly supportive. "I actually love it," one viewer said.

Woman creates dream kitchen, but one mistake ruined everything

Despite the woman's upset, the comments were surprisingly supportive. "I actually love it," one viewer said.

Despite the woman's upset, the comments were surprisingly supportive. "I actually love it," one viewer said.

The Marine Corps said federal agents will be at access points during graduation days to screen and verify immigration status.

Despite the woman's upset, the comments were surprisingly supportive. "I actually love it," one viewer said.

Woman creates dream kitchen, but one mistake ruined everything

Despite the woman's upset, the comments were surprisingly supportive. "I actually love it," one viewer said.

Woman creates dream kitchen, but one mistake ruined everything

Despite the woman's upset, the comments were surprisingly supportive. "I actually love it," one viewer said.

ICE to check papers of new marines' relatives at graduation

The Marine Corps said federal agents will be at access points during graduation days to screen and verify immigration status.

Franklin's Lightning Rod Served Political Ends

Whether lightning rods should have rounded or pointy ends became a point of contention between rebellious Americans and King George III.

Woman creates dream kitchen, but one mistake ruined everything

Despite the woman's upset, the comments were surprisingly supportive. "I actually love it," one viewer said.

Woman creates dream kitchen, but one mistake ruined everything

Despite the woman's upset, the comments were surprisingly supportive. "I actually love it," one viewer said.

ICE to check papers of new marines' relatives at graduation

The Marine Corps said federal agents will be at access points during graduation days to screen and verify immigration status.

Woman creates dream kitchen, but one mistake ruined everything

Despite the woman's upset, the comments were surprisingly supportive. "I actually love it," one viewer said.

ICE to check papers of new marines' relatives at graduation

The Marine Corps said federal agents will be at access points during graduation days to screen and verify immigration status.

Quantum Computers Compete for "Supremacy"

Two technologies may be on the verge of surpassing even the most powerful digital computers in a year or so, but key challenges remain unsolved

Woman creates dream kitchen, but one mistake ruined everything

Despite the woman's upset, the comments were surprisingly supportive. "I actually love it," one viewer said.

Woman creates dream kitchen, but one mistake ruined everything

Despite the woman's upset, the comments were surprisingly supportive. "I actually love it," one viewer said.

A Window to the Age of Dinosaurs

A tiny, amber-encased bird is a fossil treasure

ICE to check papers of new marines' relatives at graduation

The Marine Corps said federal agents will be at access points during graduation days to screen and verify immigration status.

ICE to check papers of new marines' relatives at graduation

The Marine Corps said federal agents will be at access points during graduation days to screen and verify immigration status.

ICE to check papers of new marines' relatives at graduation

The Marine Corps said federal agents will be at access points during graduation days to screen and verify immigration status.

How Do We Know If a Drug Actually Works?

The term “effective” doesn’t have a precise definition—and that can be a problem

ICE to check papers of new marines' relatives at graduation

The Marine Corps said federal agents will be at access points during graduation days to screen and verify immigration status.

The Problem with Being a Top Performer

Research demonstrates the ways coworkers punish star employees

Tripping on Peyote in Navajo Nation

A journalist exploring psychedelics’ therapeutic potential participates in a ceremony of the Native American Church

Democrat Tackles Climate Change Issues, Defying GOP Leadership

Congressperson Eddie Bernice Johnson plans to hold a series of round tables on critical science issues, including ocean acidification and environmental justice

Crime Labs Race to ID New, Lethal Opioids

Identifying what’s on the streets may help solve cases and save lives

Get the Glow: The Secret to Deep-Water Corals' Radiance

Organisms use red fluorescent protein to optimize light for photosynthesis

When Does Your Intelligence Peak?

Are we really at our smartest in our 20s? What about the wisdom and experience that come with age? At what age do we strike the right balance between cogniti...

What to Believe in Antarctica's Great Ice Debate

Although not all the studies agree, most climate scientists argue that, yes, Antarctica is losing mass in a warming world

Personalized Cancer Vaccines Vanquish Melanoma in Small Study

The therapy trains the immune system to attack tumors

Skeptics Poke Holes in Claim That Birds Mistake Plastic for Food

Idea was that birds are drawn to smell of plastic garbage, but research may have looked at the wrong birds

Using Big Data to Hack Autism

Researchers scour datasets for clues to autism—needles in a genetic haystack of 20,000 people

Make Mouthwatering Candy Melt

A sweet science project from Science Buddies