A fossilized skeleton of an ancient crocodile-like organism that lived in what’s now Brazil.
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Archaeologist and paleontologist Juan Carlos Cisneros tells The Scientist that researchers frequently fail to involve local groups—and sometimes violate laws—when studying Latin American fossils.

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Prominent Plant Geneticist Accused of Sexual Harassment

Mexican Senate Votes to Cut Research Funding, Disaster Relief

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Skulls from the Yucatán Peninsula a Clue to Early American Settlers

Monarchs Covered 53 Percent Less Area in Mexico this Winter

Mexico’s Monarch Butterfly Defender Found Dead

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Swamped by Sargassum: The New Normal for Caribbean Beaches

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Mexican President Eases Up on Researchers’ Travel Rules

A Lost Microbial World the scientist

Prehistoric Microbes Inhabit an Oasis in the Northern Mexican Desert

Eastern Monarchs Flourish While Western Numbers Plunge

Image of the Day: Slimy Business

Texas Stem Cell Law Opens Door for Controversial Treatments

First Dengue Vax Approved

Diversity in Mexico

Stem-Cell Clinic Moves to Mexico

The Spoils of War

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Photo of John Calhoun crouches within his rodent utopia-turned-dystopia

Universe 25 Experiment

A red male cardinal and a brownish female sit on a branch in front of a green background.

Sex Determination: It’s in the Genes—Sometimes

A group of large animals, some of which are being studied for cancer resistance genes and proteins, are pictured, including a bison, an elephant, a giraffe, a manatee, a zebra, and a whale.

Peto’s Paradox: How Gigantic Species Evolved to Beat Cancer

A cross-section of a mouse brain with staining for NOVA1 and cell nuclei.

Strange Squeaks: A Uniquely Human Gene Alters Mouse “Songs”

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Discover the history, mechanics, and potential of PCR.

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Understanding Disease Through Biomarkers

Understanding Disease Through Biomarkers

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March 2025, Issue 1

How Do Embryos Know How Fast to Develop

In mammals, intracellular clocks begin to tick within days of fertilization.

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Discover the history, mechanics, and potential of PCR.

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Explore polypharmacology’s beneficial role in target-based drug discovery

Embracing Polypharmacology for Multipurpose Drug Targeting

Fortis Life Sciences
3D rendered cross section of influenza viruses, showing surface proteins on the outside and single stranded RNA inside the virus

Genetic Insights Break Infectious Pathogen Barriers

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A photo of sample storage boxes in an ultra-low temperature freezer.

Navigating Cold Storage Solutions

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Evotec Announces Key Progress in Neuroscience Collaboration with Bristol Myers Squibb