Guppies and sexual conflict? It's a genital arms race

(Phys.org) —It's not always easy to tell if a fish is male or female: they look more or less the same. But there are exceptions, such as guppies and, as with humans, guppy genitalia varies in size across the species.

How much does cybercrime cost?

(Phys.org) -- The first systematic study of the cost of cybercrime recommends that society should spend less on antivirus software and more on policing the internet.