Genetics

A Nile crocodile.

Scientists Unlock the Secrets of Crocodile Skin and Its Irregular, Mystifying Patterns

The scales on crocodiles’ heads are very different from the skin appendages of other animals and even distinct from the scales on the rest of their bodies

The genetic basis for orange cats' coloration has long been unknown to scientists.

Geneticists Solve the Mystery of Why Some Cats Are Orange—and Why They Tend to Be Males

Two new, preliminary papers identify a gene related to a cat’s coloration. The work also explains why tortoiseshell and calico cats tend to be females

Fat tissue, as seen here under a scanning electron micrograph, maintains a "memory" of obesity, new research suggests.

Fat Cells Retain a 'Memory' of Obesity, Making It Hard to Lose Weight and Keep It Off, Study Suggests

Obesity leads to DNA alterations that affect gene activity and linger after weight loss, a finding that researchers say could help reduce stigma around the disease

Four plaster casts from the House of the Golden Bracelet were made in 1974.

DNA Evidence Is Rewriting the Stories of Victims Who Perished in Pompeii Nearly 2,000 Years Ago

A new study has shattered historians' long-held assumptions about some of the people who died in Mount Vesuvius' eruption in 79 C.E.

The researchers studied the dusky lory (pictured) and the rosy-faced lovebird.

A Simple Chemical Shift Explains Why Parrots Are So Colorful, Study Suggests

Unlike other birds, which get pigments from their diets, parrots produce their own—but scientists never fully understood the underlying mechanisms, until now

The man's remains were found in 1938 in a well by Sverresborg Castle, near the modern-day city of Trondheim.

Scientists Think a Skeleton Found in a Well Is the Same Man Described in an 800-Year-Old Norse Text

The remains were discovered during excavations in 1938. Now, researchers have learned new information about his identity by analyzing DNA from his tooth

Researchers are trying to "bring back" the thylacine, or Tasmanian tiger, a species that has not been officially recorded since 1936.

A 110-Year-Old Pickled Thylacine Head Helped Build the Most Complete Ancient Genome to Date, Says 'De-Extinction' Company

Colossal Biosciences reports it extracted DNA and RNA from the Tasmanian tiger specimen, a key step forward in its effort to create a modern proxy of the extinct species. Other scientists are calling for data to back up the claim

The infant's skeleton was excavated in 1998 in a cave in Puglia.

An Ice Age Infant’s 17,000-Year-Old DNA Reveals He Had Dark Skin and Blue Eyes

The baby boy’s recovered genome suggests he’s related to a famous Ice Age population

Scientists traced the history of AMY1, the gene that's responsible for the production of amylase, an enzyme that helps break down complex carbohydrates.

Can't Get Enough Carbs? That Craving Might Have Started More Than 800,000 Years Ago

New research traces the genetic underpinnings of the enzyme amylase, which helps humans digest starches and sugars

Could a private citizen get hold of a genome and use it to bring an extinct animal back to life? 

Could Anyone Bring an Extinct Animal Back to Life? And More Questions From Our Readers

You’ve got questions. We’ve got experts

The lions have been housed as taxidermy specimens at the Field Museum in Chicago since 1925.

Two Lions Went on a Man-Eating Spree in 1898. Now, DNA Evidence Reveals Their Diets

The notorious predators, nicknamed the “Man-Eaters of Tsavo,” terrorized railway workers in Kenya for roughly nine months

Itty-bitty insects have an outsized impact on human culture.

From Silk Moths to Fruit Flies, These Five Insects Have Changed the World

It’s easy to write bugs off as pests, but consider the ways in which they have positively impacted our lives

The Nobel Prize in Physiology or Medicine was awarded to Victor Ambros and Gary Ruvkun, who together discovered microRNA.

American Scientists Win Nobel Prize in Medicine for 'Groundbreaking' Gene Discovery Made by Studying Worms

Victor Ambros and Gary Ruvkun discovered microRNA, tiny molecules that play a crucial role in how cells develop, paving the way for new treatments for diseases

Researchers mapped all 139,255 neurons in the brain of an adult fruit fly, which are linked by more than 50 million synapses.

Scientists Unveil the First-Ever Complete Map of an Adult Fruit Fly's Brain, Captured in Stunning Detail

The brain diagram, called a connectome, could revolutionize researchers' understanding of the human brain, which has many parallels with a fruit fly's

The Marco Polo sheep is a subspecies of argali, the largest living wild sheep.

Montana Rancher Who Created Giant, Hybrid Sheep Sentenced to Six Months in Prison

Arthur “Jack” Schubarth cloned illegally imported genetic material from the Marco Polo argali to create hybrid sheep that would draw higher prices from hunting preserves

Annual mammograms are recommended for women in their 40s and above, but new research suggests younger adults are increasingly at risk for breast cancer.

Breast Cancer Cases Are Rising Among Younger Women, Report Finds

Though breast cancer mortality is declining overall, Asian American women and women under 50 have experienced an uptick in diagnoses of the disease

This "everlasting" crystal contains the entire human genome, recorded using ultra-fast lasers, and is meant to instruct future species on how to create humans.

In Case Humans Go Extinct, This Memory Crystal Will Store Our Genome for Billions of Years

Scientists have created "a form of information immortality" meant to instruct future species on how to recreate humans. But who, or what, will find it?

Construction of the famous stone statues of Rapa Nui, called moai, was previously thought to have contributed to the island's population collapse.

Easter Island's Ancient Population Never Faced Ecological Collapse, Suggests Another Study

New DNA analysis adds to growing research indicating the famous Pacific island did not collapse from overuse of resources before the arrival of Europeans

Researchers discovered Thorin's fossilized remains in 2015 in a cave in southern France.

Ancient DNA Reveals Neanderthal Group Was Isolated for 50,000 Years

A new study, based on the remains of a Neanderthal nicknamed Thorin, is shaking up what archaeologists long thought about these early humans in Europe

Recent genetic research could be used to produce plants without prickles, making it easier for gardeners to pluck roses without getting jabbed.

Scientists Identify the Gene Behind Thorny Roses and Other Prickly Plants

A recent study could pave the way to cultivating various thornless plants, making them easier to grow and potentially more widely available

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