A group of newborn mice with their mother.
| 3 min read
Scientists have discovered that a lack of iron in pregnant mice can alter the sex development of embryos, challenging long-held beliefs about how sex is determined.

sex determination

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Opinion: Biological Science Rejects the Sex Binary, and That’s Good for Humanity

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Deleting a MicroRNA Cluster Reversed Biological Sex in Mice 

Switch Master: A Profile of Barbara Meyer

Rising Temperatures and the Elimination of Male Turtles

Sex Reversal Mystery Explained?

Abscisic Acid’s Role in Ferns Finally Determined

Fingerprints Yield Sex Info

Week in Review: June 29–July 3

RNA-based Sex Determination?

RNA Determines Sex in Silk Worms

Genome Digest

It Takes Two

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Adélie penguin family

Penguins Are Among the World’s Slowest-Evolving Birds: Study

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Universe 25 Experiment

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An AI-Powered Scientist Proposes a Treatment for Blindness

A group of newborn mice with their mother.

Maternal Iron Deficiency Can Trigger Sex Reversal in Mouse Embryos

Multimedia

Conceptual 3D illustration of mycoplasma colonies

Taking Control of Cellular Contamination with PCR Testing

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Rare Disease Research Gets a Boost from Automated NGS Solutions

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Image of small blue creatures called Nergals. Some have hearts above their heads, which signify friendship. There is one Nergal who is sneezing and losing health, which is denoted by minus one signs floating around it.
June 2025, Issue 1

Nergal Networks: Where Friendship Meets Infection

A citizen science game explores how social choices and networks can influence how an illness moves through a population.

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Unraveling Complex Biology with Advanced Multiomics Technology

Unraveling Complex Biology with Five-Dimensional Multiomics

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Resurrecting Plant Defense Mechanisms to Avoid Crop Pathogens

Resurrecting Plant Defense Mechanisms to Avoid Crop Pathogens

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Seeing and Sorting with Confidence

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Streamlining Microbial Quality Control Testing

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Products

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Agilent Unveils the Next Generation in LC-Mass Detection: The InfinityLab Pro iQ Series

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Pioneering Cancer Plasticity Atlas will help Predict Response to Cancer Therapies

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How Alderley Analytical are Delivering eXtreme Robustness in Bioanalysis