Which is more complex—a typical man walking across a street, or a blind man carrying a legless man across the street?

According to a recent report, one biotech company has plans to test and market a rather unusual treatment for certain autoimmune intestinal ailments like Crohn's disease…a concoction containing the eggs of a parasitic whipworm that infects pigs.

That's right: Pig parasites used to treat human disease. How can parasites possibly help?

Biology textbooks teach that mutations added the high-quality genetic information needed to transmutate a fish into a monkey—even though experiments have shown that mutations merely corrupt the information that is already present. In a new experiment, microbiologists from Uppsala University in Sweden induced mutations in two bacterial genes to observe the effects.

Methodist Dallas Medical Center in 2009 averted an impending outbreak of dangerously infectious bacteria called Acinetobacter baumannii. Although less prevalent than MRSA, Acinetobacter has acquired a similar resistance to common antibiotics. Would it be accurate to refer to this change in bacteria as "evolution"?

One hundred and fifty years ago, Charles Darwin published his proposal that all creatures on earth emerged naturally from a common ancestor through a process of gradual change. Although this hypothesis rapidly pervaded Western thinking about origins, substantial corroborating evidence for such morphing between various organisms has not materialized.