BiologyApril 1, 2021
Killer Leaves Emerge from Plant-Butterfly Arms Race
Closely related plants evolved to sacrifice patches of their own leaves, destroying specific caterpillar eggs
The Sciences
PolicyApril 1, 2021
Readers Respond to the December 2020 Issue
Letters to the editor from the December 2020 issue of Scientific American
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CultureApril 1, 2021
Poem: ‘Picture a Clerihew’
Science in meter and verse
PolicyApril 1, 2021
How to Be an Effective Science Communicator
Telescopes on the moon, the mathematics of connections, new hope for dark matter, and realistic mythical beings
The SciencesApril 1, 2021
The Mathematics of How Connections Become Global
Percolation theory illuminates the behavior of many kinds of networks, from cell-phone connections to disease transmission
FitnessApril 1, 2021
Our Bodies Replace Billions of Cells Every Day
Blood and the gut dominate cell turnover
CultureApril 1, 2021
Sweeping Whale Streaming Series, Profile of CRISPR Discoverer and an Examination of Future Realities
Recommendations from the editors of Scientific American
CultureApril 1, 2021
How to Make a Hippogriff Fly and Other Flights of Fancy
A paleontologist and an illustrator team up to make mythical creatures follow biomechanical rules
PolicyApril 1, 2021
In Case You Missed It
Top news from around the world
Space & PhysicsApril 1, 2021
Dark Matter’s Last Stand
A new experiment could catch invisible particles that previous detectors have not
ChemistryApril 1, 2021
Volcanic Ash Threatens Pompeii’s Buried Murals
Tests on excavated paintings revealed corrosive salts coming from surrounding volcanic material
Space & PhysicsApril 1, 2021
Adaptive Optics Branches Out
A tool built for astronomy finds new life combating space debris and enabling quantum encryption