The root system of a tree species is genetically different than the leaves of that individual, potentially modifying scientists’ understanding of evolution.
The Scientist
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Fossils from northern Kenya point to a new human species that lived in Africa nearly 2 million years ago.
Chemicals that change the way DNA is packaged could improve the effects of current antipsychotics.
At age 16, Alexandra Sourakov has her first scientific publication, on the foraging behavior of butterflies.
Evolving the ability to run may also have made our ancestors smarter, suggesting that exercise can be healthy for the brain as well as the body.
Two whole genome duplications boosted the complexity of the ancestor of all vertebrates, but also introduced potential for disease.
Genomic analyses reveal that the polar bear evolved between 4 and 5 million years ago, far earlier than previous studies had estimated.
A relatively new pair of sex chromosomes in the fruit fly allows researchers to track their evolution from the beginning.
Random chance, plus small differences in uterine environments, give rise to divergent epigenetic patterns in identical twins.
Researchers breed fruit flies that, after 40 generations of conditioning, have acquired the ability to react to numbers.
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