News
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Health & MedicineStem cell shift may lead to infections, leukemia
Aging of blood-producing stem cells could be responsible for the relatively high incidence of infections and myeloid leukemia in the elderly.
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AnimalsHe Clones, She Clones: Dad, mom ants as different species
In the little fire ant, males and queens clone themselves, the closest science has gotten to declaring males and females as separate species.
By Susan Milius -
Mother Knows Worst: Abusive parenting spans generations in monkeys
Many female rhesus monkeys who were abused as infants by their mothers do the same to their own infants, raising the prospect of using these animals as a model for human child abuse.