Small-brained female guppies aren't drawn to attractive males

Female guppies with smaller brains can distinguish attractive males, but they don't recognise them as being more appealing or choose to mate with them, according to a new study by UCL and Stockholm University researchers.

Brain genes related to innovation revealed in birds

Wild birds that are more clever than others at foraging for food have different levels of a neurotransmitter receptor that has been linked with intelligence in humans, according to a study led by McGill University researchers. ...

Study refutes theory linking cognition, genes and income

Researchers have cast doubt on a widely-held belief that connects family income with cognitive development, according to a new study published in Proceedings of the National Academy of Sciences.

25 is 'golden age' for the ability to make random choices

People's ability to make random choices or mimic a random process, such as coming up with hypothetical results for a series of coin flips, peaks around age 25, according to a study published in PLOS Computational Biology.

Scholars show new method of harvesting crowd wisdom

The wisdom of crowds is not always perfect. But two scholars at MIT's Sloan Neuroeconomics Lab, along with a colleague at Princeton University, have found a way to make it better.

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