Competition for resources between mothers- and daughters-in-law having children at the same time could have been a driver for the emergence of menopause.
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A polar bear in a German zoo dies after contracting a virus normally found in zebras.
Researchers have found an increase in butterflies with unusual wing shapes, legs, and antennae than before the nuclear disaster.
A Bill of Rights amendment reaffirming the right to pray could have negative consequences for the teaching of evolution.
The root system of a tree species is genetically different than the leaves of that individual, potentially modifying scientists’ understanding of evolution.
Researchers analyzing the bacteria in municipal drinking water find simple measures can increase beneficial bacteria while reducing pathogenic strains.
Fossils from northern Kenya point to a new human species that lived in Africa nearly 2 million years ago.
As many as 1,000 different non-native organisms used in the classroom are being released into the wild by school teachers.
Farmed salmon may have more in common with their more expensive wild-caught counterparts than consumers are led to believe.
Two whole genome duplications boosted the complexity of the ancestor of all vertebrates, but also introduced potential for disease.
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