News
- Humans
Maiden shows signs of TB-like infection
Molecular analysis yields clues about the immune system activity of a probable sacrificial victim.
- Health & Medicine
Male circumcision tied to lower HIV prevalence
Clinical programs in eastern and southern Africa also seem to be changing people’s views on the operation.
- Earth
External ills imperil tropical reserves
Impacts just outside park boundaries cause ecosystems within to decline.
- Humans
Altruistic kidney donors help many
Mass exchanges result in more kidneys for difficult-to-match recipients.
- Earth
Night lights may foster depression
In animals, chronic dim light triggers brain changes that disappear with the return of nightlong darkness.
