DNA

The new research sequenced the genomes of more than 230 primate species, 58 percent of which are threatened with extinction.

What the Largest-Ever Study of Primate DNA Reveals About Ourselves

The findings cover not only conservation and primate evolution, but also human health and diseases

Researchers hope that an injection could one day be a faster and safer substitute for surgical cat sterilization.

Scientists Develop New Birth Control for Female Cats—No Surgery Necessary

The one-time injection of a gene therapy could eventually be used to control cat populations

Rosalind Franklin's work was vital to the discovery of the structure of DNA, but her role went largely unrecognized at the time. 

New Musical Spotlights Rosalind Franklin's DNA Discoveries

"Double Helix," a fictionalized account of Franklin's groundbreaking work, premieres this week

The Charterhouse Warren site in Somerset, England, in 1972. Researchers detected the DNA of plague-causing bacteria in the 4,000-year-old remains of two people found there.

4,000-Year-Old DNA Is the Oldest Evidence of Plague in Britain

Scientists found DNA of the plague-causing bacteria in the teeth of three Bronze Age people buried at two different sites

Two views of a composite reconstruction of the earliest known Homo sapiens fossils, which were discovered six years ago in Morocco and date to around 300,000 years ago.

DNA Suggests Modern Humans Emerged From Several Groups in Africa, Not One

Scientists used computer modeling and the genomes of several hundred living people to examine our prehistoric origins

A death cap mushroom, the most poisonous mushroom in the world. Around 90 percent of all mushroom-related fatalities are caused by the fungus.

Possible Antidote to World's Deadliest Mushroom Discovered

A dye used in medical imaging appeared to make the death cap's toxin less fatal to mice in a new study

Hormiphora californensis, also called the California sea gooseberry, is a comb jelly common in California coastal waters.

Comb Jellies May Be the World's Oldest Animal Group

A new study suggests that ancestors of comb jellies, not sponges, were the first to break off from the common ancestor of all animals

Researchers Jessica Farrell and Sean Goggin collect water samples at Moultrie Creek in St. Augustine, Florida.

Scientists Can Now Pull Human DNA From Air and Water, Raising Privacy Questions

Environmental DNA helps monitor elusive and endangered animals, but it could be an ethical minefield when used with humans, new study shows

The "pangenome" is meant to make medicine more equitable by including genetic sequences from a more diverse group of people.

Researchers Reveal the 'Pangenome,' a More Diverse Look at Human DNA

The new version of the human genome could lead to better diagnostics and treatment of genetic diseases

Stress can contribute to a number of health problems, such as high blood pressure, diabetes and depression.

Stress Can Age You, but It Could Be Reversed, Study Says

While stressful events like surgery and pregnancy can raise biological age—which is linked to health risks—the change may not be permanent

An artist's interpretation of what the pendant may have looked like as a necklace

Ancient DNA Reveals Who Wore This 20,000-Year-Old Pendant

Researchers have found a new way to extract human DNA from porous artifacts

Balto and his sled driver, Gunnar Kasson, at the unveiling of Central Park's Balto statue in 1925.

Balto's DNA Provides a New Look at the Intrepid Sled Dog

Scientists sequenced the famous canine's genome as part of a larger project studying the genes of 240 mammal species

Rosalind Franklin's work with X-ray imaging played an important part in the discovery of DNA's structure.

What We're Still Learning About Rosalind Franklin’s Unheralded Brilliance

Using new historical evidence, two scientists argue the female chemist was more involved in discovering DNA's structure than she got credit for

Excavations at Oaklawn Cemetery in downtown Tulsa have revealed 62 unmarked graves, some of which may be linked to the 1921 Tulsa Race Massacre.

New DNA Analysis Could Help Identify Victims of the Tulsa Race Massacre

Experts have linked six genetic profiles sequenced from exhumed remains to 19 potential surnames in seven states

Yellow crazy ants (Anoplolepis gracilipes)

These Male Ants Have Two Separate Sets of DNA

A genetic condition called chimerism may have helped yellow crazy ants become a dominating invasive species, a new study suggests

The bow of the Vasa displayed at the Vasa Museum in Stockholm

Who Was the Woman Aboard This Famed 17th-Century Swedish Warship?

DNA analysis has revealed that a woman was among the 30 who died when the 'Vasa' sank on its maiden voyage

New research suggests Native Americans used horses of European descent long before colonizers arrived in the American West.

New Research Rewrites the History of American Horses

Native Americans spread the animals across the West before Europeans arrived in the region, archaeological evidence and Indigenous knowledge show

A portrait of Ludwig van Beethoven by August von Kloeber. The composer suffered from health problems throughout his adult life, including hearing loss and gastrointestinal issues.

DNA From Beethoven's Hair Reveals Clues About His Death

The composer was predisposed to liver disease and had hepatitis B at the end of his life, a new study finds

To collect a saliva sample, technicians instruct a person to tilt their head for two to five minutes and spit the accumulated saliva into a sterile tube. The saliva-filled tube is kept on ice and sent to the laboratory to test for the presence of biomarkers for cancer or other diseases.

Is Saliva the Next Frontier in Cancer Detection?

Scientists are finding tumor signals in spit that could be key to developing diagnostic tests for various types of cancer

Industrialization changed Italy’s Bagnoli Bay. Analyzing the DNA that was trapped in sediment offers a record of what was lost—and a clue as to how to get it back.

DNA Buried in Sediment Helps Scientists Picture Past Ecosystems

Examining the evidence offers a way to look back at now damaged environments

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