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How to Prevent Form Spam Without Captchas 272

UnderAttack writes "Spam submitted to web contact forms and forums continues to be a huge problem. The standard way out is the use of captchas. However, captchas can be hard to read even for humans. And if implemented wrong, they will be read by the bots. The SANS Internet Storm Center covers a nice set of alternatives to captchas. For example, the use of style sheets to hide certain form fields from humans, but make them 'attractive' to bots. The idea of these methods is to increase the work a spammer has to do to spam the form without inconveniencing regular users."

Fear of Snakes May Have Driven Pre-Human Evolution 553

Krishna Dagli writes "An evolutionary arms race between early snakes and mammals triggered the development of improved vision and large brains in primates, a radical new theory suggests. The idea, proposed by Lynne Isbell, an anthropologist at the University of California, Davis, suggests that snakes and primates share a long and intimate history, one that forced both groups to evolve new strategies as each attempted to gain the upper hand. Early primates developed a better eye for color, detail and movement and the ability to see in three dimensions — traits that are important for detecting threats at close range. Humans are descended from those same primates. "

Nine Things You Should Know About Nautilus 257

lessthan0 writes "The Nautilus program in GNOME is not only the default file manager, it creates and manages the desktop. While it looks simple on the surface, there is a lot of hidden power under the shell. The latest version of Nautilus is 2.14.0, which is included in Fedora Core 5. article covers a few non-obvious things about how Nautilus works."

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