Aedes aegypti further adapted to life around humans when it arrived in the Americas, study of hundreds of mosquito genomes reveals

Shots target group B streptococcus, a little-known microbe that can cause stillbirths and life-threatening disease in infants

Flies, beetles, wasps, and other creatures from the Cretaceous reveal ecosystems details of the Gondwanan supercontinent

In games with toys, “gifted” dogs can extend names to new objects with the same purpose as known ones

Sharp drop in grant awards leaves researchers frustrated

After an unusual award process this year, applicants for next year are waiting for overdue guidelines

Even in athletes without chronic traumatic encephalopathy, brain tissue showed neuron loss and other changes, though their significance isn’t clear

Lab-grown organoids reproduce some of a kidney’s internal structure and function

Proposed system would mirror Open Payments program for tracking industry payments to doctors

Inaugural project for new center searches for genes involved in diabetes

New satellite method does not align with past estimates from aerial surveys, but some biologists are skeptical

Hanford vitrification plant set to open but some fear Trump officials are pushing for a cheaper alternative

Pending spending bill urges agencies to find other sources of scientific advice

Science History Institute makes public multimillion-dollar collection, including Rosalind Franklin’s famous DNA image, assembled by fake scientist

Sensors can detect chemical clues invisible to the human eye

Move could signal return to ban on such studies imposed by first Trump administration

Spiky projections on plant matter may act like “drain snakes,” helping felines dislodge wads of fur

Finding highlights promise, questions about detectors of AI-generated text

New initiative leaves researchers with questions about details and scope

Paul Mischel and others are testing therapies for rogue genetic loops that drive tumor evolution and growth

The new findings narrow age estimates for the clutch of eggs—and may help identify which species laid them

“Completely surprising” discovery based on ancient pollutants suggests mining and smelting continued apace for centuries

Paleontologists use x-rays to reconstruct ancient reptile bones too fragile to remove from rock

Observation confirms that a black hole’s area can only grow and never shrink