Two whole genome duplications boosted the complexity of the ancestor of all vertebrates, but also introduced potential for disease.
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Genomic analyses reveal that the polar bear evolved between 4 and 5 million years ago, far earlier than previous studies had estimated.
Researchers can see the differences in the neuronal activity of monkeys that use different strategies to reach out to a target.
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.
Potential biases in scientific data collection and analysis should be minimized.
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