Advances

AI-based systems can help identify livestock’s early signs of distress

Humpback whales learn their haunting melodies in much the same way humans learn words

Tiny frogs seem to skim the water’s surface, but high-speed video reveals their secret

Scientists have created a ranking of grocery store items based on their degree of processing

This strange sea creature stumped scientists for 20 years. Here’s what it really is

An AI analysis and a chemical sensor determine drinks’ dilution, freshness and type

Arrange pieces into a square in this math puzzle

Songbirds may socialize across species during nighttime migrations

Attention deficit hyperactivity disorder symptoms worsen right before and during a period, a new study finds, and this could affect treatment

Transplanted chloroplasts endured two days inside animal cells—and got to work

A prime number study charts the limits of detection

Infants who experienced rationing had a meaningfully lower risk of diabetes and hypertension decades later