Image of forensic scientist Mitchell Holland. In the background there is someone in a white jumpsuit standing in front of caution tape.

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Image of a forensic scientist holding a magnifying glass to DNA to reveal a DNA fingerprint.

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Image of a forensic scientist holding a magnifying glass to DNA to reveal a DNA fingerprint. 

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DNA Profiling: Tracing Killers and Solving Mysteries Using Genetic Clues

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Photo of Holowatyj wearing a white lab coat. She is sitting at a laboratory bench and pipetting a liquid from a falcon tube.

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Illustration of a young adult looking at their phone as they walk through an arrow that is pointing up. An illustration of a colon is in the background.

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Generation X and Millennials Face a Steep Rise in Early-Onset Colorectal Cancer Cases

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

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A black and white image of Nettie Stevens wearing a high-necked dress and a large hat.

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Richel Meisel wears a red collared shirt and stands in front of a light background.

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A tank filled with small fish in the laboratory.

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Judith Mank and a handful of other researchers observe tanks of guppies in the laboratory.

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A small brown mouse with a white underbelly.

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An underwater image of a snorkeler over a coral reef.

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Sex Determination: It&rsquo;s in the Genes&mdash;Sometimes

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Scientists dive into the genomes of whales, elephants, and other animal giants looking for new weapons in the fight against cancer.

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

A long-term study of nearly 800 patients demonstrated a strong safety profile for T cells engineered with viral vectors.

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Study Confirms Safety of Genetically Modified T Cells

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

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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

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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

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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;