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Emperor cichlids, large fish native to Lake Tanganyika in Africa, don't like being stared at, especially if someone's gaze is directed at their offspring. Those are the findings of a new study published in the journal Royal ...

Two new studies from investigators at Mass General Brigham challenge a decades-old assumption that the thymus, an organ best known for its role in establishing immune function in childhood, becomes irrelevant in adulthood. ...

For years, one of the most powerful weapons against certain blood cancers, called CAR-T cell therapy, has required an elaborate process: Doctors extract a patient's immune cells, ship them to a specialized facility where ...

For over 350 years, quinine and other extracts from the cinchona tree (Cinchona spp.) were the only effective medicines against malaria, a tropical fever caused by single-celled parasites of the genus Plasmodium and transmitted ...

Two microscopic grains collide and produce a tiny spark. This phenomenon may have provided the energy to kick off life on Earth. But if these solid particles have the same composition, what factor causes the charge to flow ...

A new study analyzing two fossilized whale skulls from around 5 million years ago has revealed fragments of sharks' teeth lodged inside them. This provides rare evidence of how sharks fed on whales in north European waters ...

Researchers have discovered an antioxidant, glutathione, that cancer cells appear to be "addicted to" as fuel, opening new pathways for investigation and a potential drug that can restrict the way tumors use this nutrient.

Tides not only affect regions along the coast, their periodic fluctuations are carried upstream inland through coastal rivers. River sections particularly affected by these tidal pulses are exposed to an increased risk of ...

Obesity increases the body's need for insulin, forcing cells in the pancreas known as beta cells to ramp up insulin production to maintain blood sugar levels. Scientists have thought that this excessive insulin secretion ...

Cancer-fighting T cells do not simply "run out of energy." They are molecularly reprogrammed. For years, mitochondrial dysfunction has been recognized as a hallmark of exhausted T cells in tumors. Yet how metabolic stress ...

Cells rely on tiny molecules called microRNAs to tune which genes are active and when. Cells must carefully control the lifespan of microRNAs to prevent widespread disruption to gene regulation. A new study led by researchers ...

Following a rapid increase in popularity of GLP-1 drugs for diabetes and weight loss, such as semaglutide and tirzepatide, approximately one in eight U.S. adults now take these medications, which also provide cardiovascular ...