Stories by John Rennie

Parasites and their hosts have devised many odd strategies-perhaps even sex-in their endless game of adaptive one-upsmanship. Yet sometimes they seem to cooperate.

Irreproducible achievements finally get what they deserve

Biologists still argue about what a species is

If red wolves are coyotes, they could lose protection

Antibody treatments could make transplanted organs acceptable

A spoonbender sues his arch critic for libel

Did experimental obstacles leave Brown motionless?

A lethal malaria may have an avian origin

Malaria-free mice offer clues for developing a human vaccine

A trail of knotted leaves leads to key regulatory genes

Is a kidney cancer treatment a therapy or an experiment?

A molecular editor makes sensible additions to RNA

The first estimate of protein components may not add up

Calcium influx may cause muscular dystrophy

Experience teaches the immune system to recognize the self

Computer maps reveal the topography of arthritis

Antibodies cure a crippling disorder-but not in people

Sound-sensitive crystals bring computerized holograms to life

An ancient magnolia's DNA reveals its evolutionary roots

Neural net catches errors that slip through Pap tests

Ultrasound speeds the release of drugs from medical implants