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Neuroscientist Siniša Hrvatin explores how animals initiate and regulate states of dormancy.

lab mice

Scientists or veterinary workers doing experiments in lab with experimental animals biological genetic engineering research

Addressing the Problematic Past of Animal Behavior Research

Image of the fly brain (grey) highlighting the population of neurons (pink) to which the gut-secreted peptide CCHa1 signals

A Protein-Rich Diet Helps Mice and Flies Sleep More Soundly: Study

Two pink-colored, rod-shaped bacteria interacting with a blue-colored human cell

Gut Bacterium Linked to Depression in Premenopause

A cross-section of mouse brain showing the locus coeruleus in fluorescent green

Hormone Sobers Up Drunken Mice: Study

Pink neutrophils on a white background.

Mucus-Eating Gut Bacteria May Promote Fever After Cancer Treatment

Drawing of a mouse scratching itself after watching a video of a different mouse scratching itself.

Specialized Brain Circuit Makes Mice Itchy When They See Others Scratch

White mice in a clear plastic cage

Different Genes Influence Lifespan in Male and Female Mice

blue-gloved hands injecting mouse with syringe

Sex of Researcher Influences Ketamine’s Effects in Mice: Study

Bright purple and orange lactobacillus bacteria.

How a Specific Gut Bacterium May Trigger Type 1 Diabetes

mouse nose peeking out from between two yellow objects

Not-so-Mellow Yellow: Pregnant Mice’s Urine Stresses Out Males

A small, brown mouse runs on a narrow, miniature treadmill

How Exercise Helps Mice Fight Pancreatic Cancer

Artist’s rendition of bright blue microbes among intestinal lining

Study Links Depression with High Levels of an Amino Acid

A white lab mouse peers over the wall of a sprawling maze

Bacterial Metabolite May Regulate Cognition in Mice

A colorized transmission electron microscope image of an oligodendrocyte (blue) surrounded by cells that it coated in myelin (red outlines).

Brain Fluid from Youngsters Gives Old Mice a Memory Boost

A white mouse huddles with some of her nine-day-old pups.

In Vivo Gene Therapy Cures Infertility in Mice

A two-pronged needle, a glass vial of smallpox vaccine, and a syringe sit on a blue surface.

Smallpox Vaccine Recruits Skin Bacteria to Fight Disease

Ken Paigen

Former Jackson Lab Director Ken Paigen Dies

Johannes Kohl Untangles the Neural Circuitry Behind Instinct

EPA Aims to Drastically Reduce Animal Testing

First Successful Gene Drive in Mammals

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Universe 25 Experiment

3D illustration of a blue virus (center) surrounded by magenta antibodies. More blue viruses are in the background.

Viruses That Mimic Human Proteins May Be More Common than Previously Thought  

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An Anti-Malarial Drug Could Ameliorate PCOS Symptoms

Multimedia

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Olink® Reveal: Accessible NGS-based proteomics for every lab

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Minimizing to Maximize Measurement Accuracy

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A greyscale image of cells dividing.
March 2025, Issue 1

How Do Embryos Know How Fast to Develop

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

View this Issue
Discover the history, mechanics, and potential of PCR.

Become a PCR Pro

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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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The Immunology of the Brain

The Immunology of the Brain

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