As an exercise in scientific navel-gazing, Georg Steinhauser’s experiment takes some beating. Starting in 2005, Steinhauser – then a chemist at the Vienna University of Technology – collected pieces ...

Belly buttons are most people's first scars, which form when doctors cut their umbilical cord after birth. Most innies are full of dozens of kinds of bacteria, fungi, and lint - especially if they're ...

Karl Kruszelnicki of the University of Sydney surveyed more than 4,500 people and determined that “you’re more likely to have BBL [belly-button lint] if you’re male, older, hairy, and have an innie.” ...

Dr Karl Kruszelnicki, the man responsible for demystifying belly button lint, has been awarded an Australia Day Honour for his work as a science communicator. Dr Karl's appointment as a Member of the ...