Genomic analyses reveal that the polar bear evolved between 4 and 5 million years ago, far earlier than previous studies had estimated.
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A relatively new pair of sex chromosomes in the fruit fly allows researchers to track their evolution from the beginning.
Researchers breed fruit flies that, after 40 generations of conditioning, have acquired the ability to react to numbers.
Guppies with experimentally shrunken brains produced more offspring than guppies bred for larger noggins, confirming a long suspected tradeoff of bigger brains.
A new study finds that an Alaskan population of the fish has quickly evolved in response to warming temperatures.
Field studies reveal non-virulent bacteria take advantage of their virulent counterparts to get a free pass into their host.
The rate of evolution is affected for millenia after mass extinctions.
The recently hyped amoeba-flagellate Collodictyon has many secrets to tell about early eukaryotic evolution.
Evolving, The Moral Molecule, Aping Mankind, and Experiment Eleven
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