Science Weekly: Superheroes – a warning

National Geographic reporter Peter Miller discusses how flocks, schools and colonies can make us better at communicating and decision-making. His new book The Smart Swarm is out now. In our new show-and-tell news section, Nell Boase , science correspondent Ian Sample and the Observer's Robin McKie discuss why autism can't be diagnosed with scans , what a new bone discovery says about human evolution , and whether the P=NP question has been solved . We Skype psychologist Sharon Lamb from the University of Massachusetts in Boston . She tells us why young boys are being brainwashed into thinking they can only be either a superhero or slacker . (Hint: it's Hollywood's fault.) Follow the podcast on our Science Weekly Twitter feed and receive updates on all breaking science news stories from Guardian Science . Email [email protected] . Join our Facebook group . Listen back through our archive . Subscribe free via iTunes to ensure every episode gets delivered. (Here is the non-iTunes URL feed ).