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| 10+ min read
New techniques have shown that people reached the New World far earlier than the long-standing estimate of 13,000 years ago, but scientists still debate exactly when humans arrived on the continent—and how.

North America

a large, mossy cedar tree in a forest

Book Excerpt from Finding the Mother Tree

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Skulls from the Yucatán Peninsula a Clue to Early American Settlers

Climate Change Linked to Shrinking Bird Sizes: Study

North America Has 3 Billion Fewer Birds Than it Did in 1970

Saving the Hellbender, a Giant Salamander Under Threat

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Artifacts Found in North America Suggest Humans Came By Sea

Measles Outbreak Worsens in Washington State

Ancient DNA Maps Early American Migrations in New Detail

Trending

A drawing of men and women holding boxes, resigning en mass from their jobs as editors.

Editors Mass Resign from Elsevier Journal After Editor-in-Chief Let Go

A team of cartoon scientists studying a giant pancreas.

Prolonged GLP-1 Exposure Remodels Gene Expression in the Pancreas by Flipping a Molecular Switch

Image of a Diploptera punctata cockroach.

Cockroach Milk Proteins Churn Out an Ig Nobel Win

In the TS 40th Anniversary template, Sarkis Mazmanian smiles in a black and white headshot photo on the left. In a photo on the right, he stands in front of a large image of a cross-section of the brain. He wears a navy jacket, a white shirt, and glasses.

Then and Now: Sarkis Mazmanian Finds Gut-Brain Links to Parkinson’s Disease

Multimedia

Essential Genes Are Dominantly Activated by Single Transcription Factors

Essential Genes Are Dominantly Activated by Single Transcription Factors

EpiCypher Logo
Rethinking ALS Biomarkers: From Discovery to Clinical Impact

Rethinking ALS Biomarkers: From Discovery to Clinical Impact

Alamar Biosciences logo
The Scientist Digest cover September 2026
September 2026

Multiplex Microscopy Becomes Easier with Encoded Antibodies

A new system that enables researchers to uniquely tag monoclonal antibodies for use in microscopy could help simplify complex imaging studies.

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Essential Genes Are Dominantly Activated by Single Transcription Factors

Essential Genes Are Dominantly Activated by Single Transcription Factors

EpiCypher Logo
Rethinking ALS Biomarkers: From Discovery to Clinical Impact

Rethinking ALS Biomarkers: From Discovery to Clinical Impact

Alamar Biosciences logo
Engineering CAR-Neutrophils In Vivo to Target Glioblastoma

Engineering CAR-Neutrophils In Vivo to Target Glioblastoma

Miltenyi
Best Practices for qPCR Assay Design and Optimization

Best Practices for qPCR Assay Design and Optimization

Bio-Rad

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