Dna

CODIS, the FBI's DNA database that could help solve Nancy Guthrie's disappearance case

CODIS is a national DNA database managed by the FBI that contains profiles from offenders and crime scenes, assisting in investigations.

A notice circulated by the Pima County Sheriff’s Office requests information on the disappearance of Nancy Guthrie, the 84-year-old mother of U.S. journalist and television host Savannah Guthrie, who went missing from her home in Tucson, Arizona , U.S. February 1, 2026.
A notice circulated by the Pima County Sheriff’s Office requests information on the disappearance of Nancy Guthrie, the 84-year-old mother of U.S. journalist and television host Savannah Guthrie, who went missing from her home in Tucson, Arizona , U.S. February 1, 2026.

FBI confirms DNA recovered from glove found near Nancy Guthrie's home

A notice circulated by the Pima County Sheriff’s Office requests information on the disappearance of Nancy Guthrie, the 84-year-old mother of U.S. journalist and television host Savannah Guthrie, who went missing from her home in Tucson, Arizona , U.S. February 1, 2026.

Arizona police, FBI continue search for Nancy Guthrie as investigation enters second week

Dr. Sivan Mercer MD

Dr. Sivan Mercer reveals: From salmon DNA to biostimulators: The hottest trends in aesthetics


Ancient DNA reveals lost human tribe that lived in Green Sahara

DNA from two mummies at Takarkori links them to 15,000-year-old Taforalt hunter-gatherers, challenging the idea of the Green Sahara as a migration corridor.

 Palm trees in green oasis in desert arid landscape between Agdz and Zagora towns in Atlas Mountains, Morocco, North Africa.

Jewish genetic data in danger again as 23andMe goes up for sale

With the company’s data up for sale, the genetic information of 15 million people are now up for grabs.

 A sign is posted in front of the 23andMe headquarters on February 01, 2024 in Sunnyvale, California. Genetic testing company 23andMe, once valued at $6 billion, is facing the possibility of delisting from NASDAQ as the company navigates numerous class action lawsuits.

2007 murder investigation reopened in Italy over new DNA analysis

New DNA evidence led Italian prosecutors to reopen the investigation into the 2007 murder of 26-year-old Italian woman.

 2007 murder investigation reopened in Italy over new DNA analysis. Illustration.

TAU researchers use CRISPR to shrink cancer cells - study

'In this study, we demonstrated that there are in fact some genes without which a cancer cell cannot survive, making them excellent targets for CRISPR therapy,' said Prof. Dan Peer.

 Illustrative image of scientific research.

Rare new sunflower species discovered in Texas national park

Scientists have identified both a new species and genus of sunflower in the Texas desert, but climate change may threaten its future before we fully understand it.

 A close-up view of the wooly devil, a new species and genus identified in Big Bend National Park in Texas.

New DNA evidence links European Huns to Xiongnu Empire elite

The Xiongnu Empire had dissolved around 100 CE, leaving a 300-year gap before the appearance of the Huns in Europe.

 Members of Eagles of Calata Nomadic group performing a free equestrian demonstration with Hunnic and archaic Hungarian costumes.

An Ice Age refuge: DNA of humans, wolves, mammoths retrieved from sediments in El Mirón cave

For the first time, researchers managed to recover DNA from sediment at a Cantabrian site.

 Aerial view of an autumnal landscape of beech forest in Ramales de la Victoria village within Alto Ason Natural Park of Cantabria Autonomous Community of Spain.

New study reveals ancient Europeans had dark skin until 3,000 years ago

Findings challenge previous belief that Europeans developed light skin soon after arriving 45,000 years ago.

 New study reveals ancient Europeans had dark skin until 3,000 years ago. Illustration.

Study shows home smoking leads to genetic changes in children's DNA

This change in gene expression due to secondhand smoke exposure may make children more vulnerable to disease as adults.

 Study shows home smoking leads to genetic changes in children's DNA. Illustration.

Orcas are targeting shark livers, according to DNA research

'We don't know how frequently these events occur in Australian waters and therefore how significant these findings are,' said Associate Professor Adam Miller.

 White shark carcass washed up in Portland, Victoria in October 2023.