DIGGING DEEPER: FOUR LEVELS OF MEANING Recounting the plot of a movie, telling what happens, is the simplest way to explain it to someone else. But this is neither a film review nor a film analysis. It’s merely a synopsis that anyone else who sees or has seen the movie will likely agree with. This level of content may be called the referential content, since it refers directly to things that ha...

While it is assumed that reintroduction of saturated fat might be deleterious, recent research suggests that the role of saturated fatty acids needs to be re-examined. “Current dietary intake recommendations of macronutrients have targeted total fat, cholesterol and saturated fat as the principle means to improve human health,” says Bruce German, professor, Department of Food Science & Technolo...

Although helping behavior is ubiquitous throughout the animal kingdom, actual rescue activity is particularly rare. Nonetheless, here we report the first experimental evidence that ants, Cataglyphis cursor, use precisely directed rescue behavior to free entrapped victims; equally important, they carefully discriminate between individuals in distress, offering aid only to nestmates. Our experime...