News
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Why is that wasp helping?
Researchers have found nests of a social insect with helpers that are neither close kin nor slaves.
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Weevils pick on someone their own size
A horned weevil can't pick a real fight with a male too big for him because the bigger one can't get a good grip.
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Trilobites might have invented farming
A close look at fossils raises the possibility that a type of trilobite farmed bacteria.
- Health & Medicine
Heart risks linked to infertility syndrome
Women with polycystic ovaries—commonly linked to infertility—are more likely than women without the disease to show early signs of heart disease.
