News
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AnimalsBird Plans: Jays show foresight in breakfast menus
The strongest evidence yet that animals plan ahead may come from western scrub jays preparing for their morning meals.
By Susan Milius -
Health & MedicineVirus Stopper: Herpes drug dampens HIV infection
An antiviral drug commonly taken for genital herpes seems to suppress HIV in people harboring both pathogens.
By Nathan Seppa -
Health & MedicineHurt-Knees Rx: Surgical method promotes ligament regeneration
A new artificial knee ligament that sparks regeneration of natural tissue could eventually make recovering from knee-repair surgery less painful and debilitating.
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Weight Matters: Big and little mouse pups become obese adults
Being either overnourished or undernourished before birth can alter gene activity, leading to obesity during adulthood.