Magazine

September-October 2016

Current Issue

September-October 2016

Volume: 104 Number: 5

In an election season, prospective voters take their impressions of the candidates not only from what they say but also on the basis of other aspects of their presentation, such as intonation, gestures, and appearance. Recent studies have identified another trait that contributes subtly but significantly to voters’ impressions: the pitch of a candidate’s voice. In “How Voice Pitch Influences Our Choice of Leaders,” political scientist Casey Klofstadt and biologists Stephen Nowicki and Rindy Anderson describe their interdisciplinary research, which attempts to weigh the effect of a high- or low-pitched voice on a candidate’s electoral success. (Cover illustration by Carlos Zamora, carloszamora.com.)

In This Issue

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Invasion of the Flatworms

Ronald Sluys

Agriculture Biology

Easily hidden in imported plants, some land flatworms are conquering the world.

Mathematical Induction and the Nature of British Miracles

Daniel S. Silver

Mathematics

A mathematical method of proof challenged traditional beliefs.

Seeds on Ice

Cary Fowler

Agriculture Environment Policy

In the Arctic Circle, the Svalbard Global Seed Vault is not waiting for doomsday, but is a secure backup for crop diversity.