James Webb found Neptune's moon Nereid has an unusual icy surface, suggesting it formed alongside the planet instead of being captured later.

A rare Neanderthal fetus reveals that many traits distinguishing Neanderthals from modern humans likely developed only after birth.

Blind Mexican cavefish became active in light while surface fish reacted to darkness, revealing how evolution rewired brains.

Mature trees do far more than provide shade. Cities must treat them as essential infrastructure to combat heat, flooding, and pollution.

A set of protocols telling scientists what to do – and what not to do – if they ever detect evidence of intelligent life ...

New research shows young salmon face greater heat stress while swimming, offering new guidance for protecting warming rivers.

Many Caribbean coral reef sponges make their own food from sunlight, ranking them among the reef's top producers.

Animals with larger brains produce fewer, larger offspring, explaining why birds evolved bigger eggs than the largest dinosaurs.

Giraffe intelligence surprises scientists as the animals perform simple mental addition to choose larger hidden food rewards.

A new survey finds most Americans can't identify the health risks of hot dogs, even though processed meat has long been linked to cancer.

A new study finds baby-led weaning supports healthy growth, giving parents more confidence when introducing solid foods to babies.

Spending more time in bright daytime light was linked to a lower dementia risk in a study of more than 87,000 adults.