Feature

A Snake-in-the-Ring Keeps Spins Aligned

Monkey Vaccine Prevents AIDS-like Disease

Biomedicine

Teenagers Reap Broad Benefits from ‘Authoritative’ Parents

Surveys Slash Away at Forest Estimates

Front Matter

AZT Helps in Early AIDS

Neptune on the Horizon

Baby Bee Odor Lures Cradle-Robbing Mites

Cautious Conclusion

Asian Human-Origin Theory Gets New Teeth

More Veggies Join Fight against Lung Cancer