Dna

FBI determines Nancy Guthrie kidnapping notes to be fakes, source says

All three messages in question were initially delivered to various media outlets, including the celebrity news site TMZ.com, before being turned over to authorities for review.

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.
The sarcophagus of Queen Elisenda in the Royal Monastery of Santa Maria Pedralbes.

Remains of medieval European Queen Elisenda, 24 others unearthed in Barcelona

Views from five different angles of a molar of an adult Neanderthal individual, discovered at Chagyrskaya Cave in the Siberia region of Russia and dating to about 59,000 years ago, seen in this undated image released on May 13, 2026.

Neanderthal tooth from Siberian cave shows signs of earliest-known invasive dental surgery - study

 Neanderthal communities in prehistoric Europe. How were they linked? (Illustrative)

Central-Eastern Europe's oldest Neanderthal group identified by DNA taken from teeth - study


Space sample reveals all five building blocks of DNA, scientists say

The presence of the nucleobases in the samples reinforces the hypothesis that carbonaceous asteroids contributed to the prebiotic chemical inventory of the early Earth.

 Ryugu.

DNA study reveals millenia-old live parrot trade spanning South America

Excavations on Peru's coast reveal pre-Inca parrot husbandry, radiocarbon-dated to 1100-1450, and long-distance transport from the Amazon basin.

A parrot. Illustration.

Study: Neanderthal-human interbreeding mostly male Neanderthals, female humans

Most people of non-African ancestry carry about 2% Neanderthal DNA, and researchers report a mirror image pattern with more human DNA on the Neanderthal X chromosome.

 World's oldest Neanderthal fingerprint found on 43,000-year-old pebble in Spain. Illustration.

Meet Britain's oldest Northerner: The ‘Ossick Lass' buried over 11,000 years ago - study

In addition to the Ossick Lass, the remains of at least seven other individuals had also recovered from the cave.

Rural landscape, Cumbria, Lake District, UK, February 25, 2026.

16 Millions descended from Genghis Khan? not so fast

Researchers analyzing DNA from four Ulytau mausoleum burials in Kazakhstan ireport that the 16 million male descendants estimate is overstated

 Genghis Khan's empire treasures rediscovered in Siberian museum storage.

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.

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

FBI investigators say DNA recovered from a glove near Nancy Guthrie’s Arizona home appears to match a masked suspect seen on surveillance footage before her disappearance.

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

On Friday afternoon, the sheriff's department said DNA that didn't belong to Nancy Guthrie or any of the others in close contact with the elderly woman had been found at her residence.

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.

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

Dr. Sivan Mercer MD

New study points to genetic ‘Achilles’ Heel’ in cancer cells

Researchers explained to TPS-IL that the same genetic machinery that allows tumors to grow at extremely high speed may also damage their DNA, exposing new vulnerabilities for future treatments.

3d illustration of cancer cells on background of DNA strands.