An abstract illustration of a tooth on a bluish background, signifying teeth that are a source of multipotent dental stem cells that can have therapeutic applications in dental diseases and beyond.

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Stem cells in the teeth and gums are multipotent and easily accessible. Scientists are researching ways to harness their power for therapies beyond dentistry.

Dental Stem Cells Regenerate More Than Just Smiles

The liquid world of fetal development provides a rich source of nutrition and protection tailored to meet the needs of the growing fetus. 

Illustration of a developing fetus surrounded by a clear fluid with a subtle yellow tinge, representing amniotic fluid.

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What Is the Amniotic Fluid Composed of? 

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How Do Embryos Know How Fast to Develop

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How Do Embryos Know How Fast to Develop? &nbsp;

Article

Simplified illustration of a scanning electron microscope and a transmission electron microscope.

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What&rsquo;s the Difference Between SEM and TEM?

A Photograph of Dan Cohn. He is wearing a dark suit with a white undershirt.

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Illustration of a scientist staring down at a broken glass flask with a powdered sample. 

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Shattered Glass, Salvaged Synthesis

Image of adeno-associated viral vectors (AAVs) being injected into tadpoles and larvae. The amount of green fluorescent protein is measured in brain sections and the selected AAVs are injected and tracked in juvenile and adult frogs and salamanders.

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Image of adeno-associated viral vectors (AAVs) being injected into tadpoles and larvae. The amount of green fluorescent protein is measured in brain sections and the selected AAVs are injected and tracked in juvenile and adult frogs and salamanders. 

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Viruses Can Map How Amphibious Brains Are Wired

Infographic

Image of microbiologist Scott Chimileski. He wears a blue shirt and smiles at the camera.

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Image of Bacillus subtilis colony biofilm against a black background.

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Bacteria Wars: Kinship in the Swarm

Top: Photograph of DNA methylation and short interfering RNA mutant (right) plants or those that have been rescued with short RNA hairpins. Bottom: Fluorescent microscopy image showing centromeres (blue) that either segregate appropriately (left) or improperly (right). 

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Photograph of two Arabidopsis plants that either are from a genotype deficient in DNA methylation and small interfering RNAs from transposable elements (right) or has been rescued with the introduction of short hairpin RNAs. Whereas the plant on the left has four white petals like a normal plant, the plant on the right lacks these petals. 

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Small RNAs Save Plant Centromeres

Morula, a solid ball of cells resulting from division of a fertilized ovum

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Science Crossword Puzzle

Crossword Puzzle

moon, lunar, woman, biology, reproduction, fertility, menstrual cycle, menstruation, menses, period, synchronization

How Do Embryos Know How Fast to Develop

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

How Do Embryos Know How Fast to Develop?

What’s the Difference Between SEM and TEM?

Shattered Glass, Salvaged Synthesis

Viruses Can Map How Amphibious Brains Are Wired

Bacteria Wars: Kinship in the Swarm

Small RNAs Save Plant Centromeres

Science Crossword Puzzle

Moon Cycles and Menstrual Cycles