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White ‘socks’ on spiders are irresistible to prey.
Maybe you can catch more flies with honey than with vinegar, but if you’re trying to catch grasshoppers, the best method is bright white socks. The white patches on the front legs of certain Asian spiders make prey willingly flock to them—and scientists don’t really understand why. Dolomedes raptor ...
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fMRI studies have some challenges to overcome.
Brain scanning is big at the moment. In particular, the technique of functional MRI (fMRI) has become hugely popular within neuroscience. But now a group of big-name neuroimaging researchers, led by Russ Poldrack, have taken a skeptical look at the field, in a new preprint (currently under peer revi...
blogs.discovermagazine.com
New genetic tests for autism raise some ethical and existential questions.
A special issue of the journal Narrative Inquiry in Bioethics features perspectives from various people who have experience with genetic testing. Many of the articles look interesting – with titles such as I Had Genetic Testing for Alzheimer’s Disease Without My Consent. But my attention was drawn t...
blogs.discovermagazine.com
Male fiddler crabs are jerks.
The males of many animal species will “coerce” females into mating by force. But according to this study, male fiddler crabs take it a step further. They lure females into their burrows, allow the ladies to enter first…and then block their escape. As the researchers in this study (delicately) put it...
blogs.discovermagazine.com
Not all trolls are anonymous.
It’s widely said that anonymity on the internet helps to promote aggressive, low quality or trolling comments. On this view, the anonymous commenter, knowing they cannot be held accountable, is free to do things that they would be ashamed to do under their real name. But now German researchers Katja...
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