News
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Moms and pups sniff out immune genes
Genes involved in the immune system also create individualized body odors that allow parents and offspring to recognize each other.
By John Travis -
AnimalsSexual conflict pushes species making
A novel comparison of 25 pairs of insect lineages finds that sexual conflict plays more of a role in making new species than scientists had realized.
By Susan Milius -
Health & MedicineBlood-cell transplants slow kidney cancer
A new transplant technique that uses blood transfusions from a sibling combined with decreasing doses of immune-suppressing drugs enables some patients to fight off advanced kidney cancer.
By Nathan Seppa -
ChemistryOld Martian questions may have new answer
Researchers simulating Martian conditions in a test tube discover a likely reason why no organic molecules have yet been found on the surface of the Red Planet.