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DNA

Researchers prompted around 950 A.I. agents to search through a massive DNA database.

Anthropic Says Its A.I. Discovered a New Enzyme System That Resembles the Revolutionary Gene-Editing Tool CRISPR

Experts at the company don’t know what the newfound system does, so its potential utility in biology—if any—remains unclear. But the work marks a major advancement because the A.I. made this discovery mostly on its own

Fire amoeba wiggling around at 140 degrees Fahrenheit

Meet the ‘Fire Amoeba,’ a Newfound Blobby Organism That’s Defying Expectations About How Much Heat Complex Life Can Handle

The newly described species, found in Northern California’s Lassen Volcanic National Park, can still reproduce at 145 degrees Fahrenheit and move around at 147 degrees, according to a new study

The common vampire bat (Desmodus rotundus) is one of 1,500 species of bats around the world.

Where Did Bats Originate? Huge Genetic Study May Have Settled the Longstanding Debate and Rewritten the Creatures’ Evolutionary Tree

The flying mammals likely arose 65 million years ago in Europe, before spreading to Africa and then the rest of the world, according to the new research

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Did Thomas Jefferson Father Sally Hemings’ Children? After More Than a Decade of Research, the Answer Is Finally Firmly in Hand

A lock of hair, advances in genetic science and a community of descendants all contributed to solving an American mystery

Between 5 and 10 percent of personality differences can be explained by the identified genetic variants, according to the study.

Part of Your Personality Is Encoded in Your Genes. Huge Analysis Links Characteristics to More Than 1,200 Common Genetic Variants

A new meta-analysis pooled data from more than one million people to look at the crossover between DNA and the “Big Five” personality traits: openness to experience, conscientiousness, extroversion, agreeableness and neuroticism

Alfie and Bailey, the first dogs whose genes were edited so they lack the allergy-inducing protein Can f 1.

Allergic to Dogs? These Gene-Edited Beagles Could Pave the Way to Your Dream Canine Companion That Won’t Trigger Sniffles

Geneticists altered Alfie and Bailey’s DNA so that they don’t produce a major allergen. However, canines like them are not currently commercially available, and some experts express ethical concerns about altering the animals’ genes

The digital facial depiction was created by the Face Lab at Liverpool John Moores University.

New Research

See the Digitally Reconstructed Face of an Ancient Man Who Witnessed England’s Greatest Upheaval

The so-called “Conquest Man” was buried in England in 1079, just over a decade into the reign of William the Conqueror. Researchers recently analyzed the skeleton’s DNA and teeth to learn more about him

A sample of cerebrospinal fluid is processed at the University of California, San Francisco, long Covid research lab.

For Many Americans, Covid Is Still a Chronic, Disabling Disease. These Scientists Are Working Tirelessly to Bring Them Relief

Long Covid saps the strength and vitality of patients, who have little recourse to fight it. A team of specialists—including an afflicted researcher working mostly from her bed—is looking for answers

Redback spiders live throughout Australia.

Here’s Why These Male Spiders Sacrifice Themselves by Somersaulting Into Females’ Fangs While Mating

A new study suggest that even strange, complex animal behaviors can have a relatively simple genetic basis

A new study, which has not been peer reviewed, suggests Denisovans might have towered over their ancient hominin peers.

Thousands of Years Ago, Denisovans Might Have Been Huge, Especially Compared to Their Archaic Human Neighbors

New research offers rare insight into our extinct cousins who lived in Asia and who may have towered over petite “Homo erectus”

Some modern humans might be taller and more muscular because of a Neanderthal-derived gene variant that affects the growth hormone pathway.

Got a Brawny Build? You Might Be Able to Thank Your Neanderthal Ancestors, According to a New Study

New research hints that some living people inherited a gene variant from Neanderthals that has made them slightly taller and more muscular than their peers

Previous research hinted at ghost ancestry in our DNA, but the new work helps pinpoint the timeline of when the ancient relatives' genetic material entered our genomes.

Traces of Two Extinct ‘Ghost’ Ancestors Were Found Hiding in Modern Human DNA, Hinting at Our Extremely Complex Family Tree

Researchers used a new method to investigate past interbreeding with Homo sapiens that doesn’t require ancient DNA. The technique identified areas of living humans’ genomes that came from unknown hominins, including one from a 1.8-million-year-old lineage

A collection of mammoth bones in a pit in Austria

Ice Age Humans Mostly Killed Female Woolly Mammoths, Suggests Ancient DNA

After analyzing more than 500 mammoth bones, researchers found that ancient humans disproportionately hunted female mammoths for reasons still unknown

Handedness refers to both hand preference and hand dominance. 

People Aren’t Born as Righties or Lefties—They Develop Hand Dominance With Practice, a New Study Suggests

Humans do have a biological preference for using one side of their body, which might prime them for using limbs on that side for complex motor tasks like writing—and honing those skills over time

A fragment of the Hillsborough meteorite

This Meteorite Crashed Into a New Jersey Home in 2024. Now, Scientists Say It Contains Some of the Building Blocks of Life

The Hillsborough meteorite belongs to a rare class of rocks from space, according to a new study. It holds amino acids and other organic compounds, as well as evidence of salty water

The sugar was detected near the center of our Milky Way galaxy, which shines brightly with stars in this artificially colored image.

In a First, Astronomers Find Sugar in the Space Between Stars, Providing New Clues About the Origins of Life on Earth

Sugars are crucial components of RNA and DNA, the basis of all known organisms alive today. In a new study, the sugar erythrulose was detected in a gas- and dust-filled cloud near the center of our Milky Way galaxy

Left: a burial mound in Kazakhstan. Right: the Golden Man's head ornaments.

Kazakhstan’s Iron Age ‘Golden Man’ and Other Elite Scythians of Eurasia Inherited Their High Social Status, Ancient DNA Suggests

Researchers have long wondered whether upper-class members of the ancient nomadic warriors earned their social status through individual achievements or birthright

Francesco I de' Medici, left, died suddenly in 1587. His brother Ferdinando I, right, succeeded him as grand duke of Tuscany.

Did This Duke Poison His Brother? A New DNA Analysis May Solve the Centuries-Old Medici Mystery

Researchers found evidence of malaria in Francesco I de’ Medici’s bones, leading them to argue “with scientific certainty” that it was disease, not arsenic, that led to his death in 1587

Microscope images of an artificial cell, colored green, dividing into two

Scientists Say They’ve Made Cells That Feed, Grow and Reproduce, Bringing Them One Step Closer to Building Life From Scratch

The human-made cells show many hallmarks of life, but they can’t make all their necessary internal structures or divide for very many generations

Some of the Neanderthal remains that were analyzed in the new study

Why Did Neanderthals Go Extinct? Inbreeding Probably Wasn’t to Blame for Their Demise in Northwestern Europe, a Study Suggests

In contrast to those who resided in Siberia, Neanderthals who lived in what’s now Belgium and France shortly before the species vanished seem to have been genetically diverse and healthy

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