Megalodon sharks, which went extinct about 3 million years ago, were three times longer than modern great white sharks and were apex predators at highest trophic level ever measured. Researchers used the traces of nitrogen trapped in shark tooth enamel to calculate the trophic levels of the prehistoric predators.

Doctors at the UCLA Gender Health Program have developed a technique to reduce an Adam's apple bump without leaving a scar on the patient's neck.

Researchers recently turned to pottery to tease apart the navigational history of the Caribbean, analyzing the composition of 96 fired clay fragments across 11 islands. The study was conducted in the Greater Antilles and marks the first time that pottery artifacts from the Lucayan Islands -- The Bahamas plus the Turks and Caicos Islands -- have been analyzed to determine their elemental...

A new statistical tool for predicting protein function could help with tasks ranging from producing biofuels to improving crops to developing new disease treatments. Not only could it help with the difficult job of altering proteins in practically useful ways, but it also works by methods that are fully interpretable -- an advantage over conventional AI.

An estimated one-quarter of adults in the U.S. have nonalcoholic fatty liver disease (NAFLD), an excess of fat in liver cells that can cause chronic inflammation and liver damage, increasing the risk of liver cancer. Now researchers have developed a simple blood test to predict which NAFLD patients are most likely to develop liver cancer.

Chemists developed a method to add two fragments to an alkene molecule in a single process. The discovery could simplify drug and materials design.

The immune system may play a fundamental role along with the central nervous system in amyotrophic lateral sclerosis (ALS), also known as 'Lou Gehrig's disease,' researchers report.

Delivering a targeted immunotoxin into breast ducts via openings in the nipple wiped out all visible and invisible precancerous lesions in laboratory studies of very early stage breast cancers.

Biomarkers that could be targets for novel drugs to treat glioblastoma brain tumors have been identified, providing hope for a cancer that is highly lethal. This new finding provides early evidence that there may be a benefit in targeting specific alterations in cancer cells with newer agents once a patient's tumor becomes resistant to temozolomide.

Researchers have shown in a single model the full story of how gas travels in the center of the Milky Way -- from being blown off by stars to falling into the black hole.

The research shows that four neighboring groups of bonobos they studied at the Kokolopori Bonobo Reserve in the Democratic Republic of Congo maintained exclusive and stable social and spatial borders between them, showing they are indeed part of distinct social groups that interact regularly and peacefully with each other.

New finding could lead to better drug treatments for chronic itch conditions, like eczema.

A political science professor argues that much of the official language around older motherhood is rooted in both ageism and ableism, as well as being out of step with current childbirth trends. The average age of childbirth has been rising steadily since the mid-1960s, and in some countries, more women are giving birth between the ages of 35 to 39 than between 20 and 24. But societal expectations...

Allowing fights among players in the National Hockey Leagues does not deter greater violence in the modern game, according to a new study.

Gritty people may be more able to self-regulate and show 'cautious control' -- but don't necessarily have greater cognitive ability, according to a new study.

A new study has found an association between obstructive sleep apnea risk and low estrogen and progesterone levels in women.

Researchers have developed a highly efficient organic bipolar transistor. The work opens up new perspectives for organic electronics -- both in data processing and transmission, as well as in medical technology applications.

To identify variations in climate across Maine wild blueberry fields at different times of the day and year, researchers analyzed annual and seasonal data from 1980-2020 for Washington, Hancock, Piscataquis, Waldo, Knox, Lincoln, Kennebec and York counties. They found that location, season and the time of day influence how fast temperatures are rising at wild blueberry fields due to climate...

Scientists have identified proteins that help decide T cell fate and used the finding to improve CAR-T cell therapy in a solid tumor model.

Researchers have uncovered new insights into the mechanisms underlying the progression of congenital heart disease (CHD) -- a spectrum of heart defects that develop before birth and remain the leading cause of childhood death.

Women in science are less likely than their male counterparts to receive authorship credit for the work they do, new research finds. Researchers for the first time used a large set of administrative data from universities that revealed exactly who was involved with and paid on various research projects.

A new study shows that breast cancer metastases form more efficiently while patients are sleeping. The finding could significantly change the way cancer is diagnosed and treated in future.

Researchers conducted studies to explain the neural mechanisms of the pons-corticolimbic network in perpetuating sad mood in depression.

The deletion of the Wt1 gene during the early stages of the embryonic reproductive organ formation leads to differences in sex development in adult mice, according to a new study.