What is belly button lint? Science has the answer.

Is your belly button basically a tiny armpit? What's actually in belly button lint? How does it even get there? Do you need ...
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A 125 Million-Year-Old Dinosaur Fossil Has the Oldest Belly Button Known to Science

Paleontologists have discovered the oldest belly button known to science on a 125 million-year-old fossil of a dinosaur in the genus Psittacosaurus. Oh, the fossil also had the first dinosaur butthole ...
IFLScience

Belly Button Stones Can Be Found Exactly Where You'd Expect

Rachael has a degree in Zoology from the University of Southampton, and specializes in animal behavior, evolution, palaeontology, and the environment.View full profile Rachael has a degree in Zoology ...
New Scientist

Belly button lint

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 ...