All Stories
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- Plants
Hard-shelled seaweed survives by its loose knees
Stringy joints between calcified algae’s segments don’t break easily under repeated stresses.
- Earth
Oxygen wafted into Earth’s atmosphere earlier than thought
Date pushed back to 3 billion years ago, suggesting photosynthesis had evolved by then.
- Life
Immune protein explains skin diseases’ link to infection
Molecule called IL-29 protects people with psoriasis from viruses.
- Psychology
Mental rotation gears up by age 5 for both boys and girls
Kid-friendly test suggests that the ability to visualize objects from different angles starts early.
- Environment
Pregnant women carry fewer traces of flame retardants
Class of toxins linked to IQ deficits dropped drastically in three years, a new study shows.
- Health & Medicine
Dextrose rub helps newborns with low blood sugar
Massaging the sugary gel into babies’ mouths may lessen the need for intravenous infusions of glucose, a study shows.
- Animals
Vampire reality check
A vampire bat drinks one meal a night, and missing just three nights in a row would probably kill the animal.
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- Planetary Science
Comet belt predicted near farthest planet
Observations have confirmed the existence of the Kuiper Belt, first proposed in 1963.
