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? 

TS Digest

Protecting Pregnancy

LONG LIVE THE QUEEN: Queen ants, such as this Harpegnathos saltator queen, can live up to 10 times longer than workers in their colonies. Scientists recently published a paper that suggests disrupted insulin signaling in queens as a possible explanation for this lifespan disparity. Posted: September 2, 2022

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An international team of scientists used sensitive instruments to show that oil from human skin reacts with ozone to generate potent, free radicals. These chemicals can further react with most organic compounds present in the indoor environment to produce dangerous pollutants.&nbsp;

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An international team of scientists used sensitive instruments to show that oil from human skin reacts with ozone to generate potent, free radicals. These chemicals can further react with most organic compounds present in the indoor environment to produce dangerous pollutants.

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STONE AGE SURGERY: Archaeologists working in Borneo recently uncovered the remains of a Stone Age young adult human who apparently had their left leg amputated roughly 31,000 years ago. Posted: September 7, 2022

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CHROMOSOME LOVE: Researchers have created mice with novel haploid karyotypes by ligating chromosome 4 (green) and 5 (red) in vitro, then injecting cells carrying the fused chromosomes into wildtype oocytes. Posted: August 25, 2022

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Caught on Camera

Science Snapshot

(Left) The optic lobes are thought to be involved in visual processing. In this study, researchers found that guppies with larger optic lobes more quickly learned a visual discrimination task&mdash;identifying which color well contained food. (Right) The fish telencephalon is thought to be involved in spatial learning, memory, and inhibitory control. Here, the researchers found that a larger telencephalon might enhance the fish&rsquo;s cognitive flexibility, allowing them to more quickly associate food with a new color after the researchers switched it.

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Fish Brain Region Size Correlates with Cognitive Flexibility

News

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Infographic: Two Guppy Brain Regions May Help Them Learn Tasks

Infographic

Illustration of pregnancy and the immune system

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Illustration showing immunology during pregnancy&nbsp;

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Modulating Immunity to Improve Pregnancy Outcomes

Feature

Illustration showing immunology during pregnancy

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Infographic: How Immunology Can Influence Pregnancy Outcomes

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Green Lab Initiatives Take Root Around the World

Article

A closeup of a dead frog floating in water with aquatic plants underneath it

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A woman with glasses and a ponytail sits on the ground, holding a frog in one gloved hand while swabbing the animal with the other hand&nbsp;

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Chytrid Fungus Deploys Varying Strategies to Infect Amphibians

A colored microscopy image showing cells that are dying in yellow and healthy cells in blue

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A colored microscopy image showing cells that are dying in yellow and healthy cells in blue&nbsp;