The everyday language is wrong in a way that hides something interesting. People say hair turns grey, goes grey, is going grey, as though the strands on a head are…
The appendix is the standard example of a vestigial organ, wheeled out in every discussion of evolutionary leftovers alongside wisdom teeth and the tailbone. It is a worm-shaped tube a…
Thunder is usually described as the noise lightning makes, which suggests the bolt itself is loud in the way a bell or an engine is loud. It is not. Lightning…
Watch the top of an escalator for a few seconds and something slightly impossible happens. A flat plate slides out from under a comb, then rises into a step, then…
Source: Wikipedia
Handedness looks like it should be a simple trait. It is visible, it is binary in everyday terms, and everybody has one. It turns out to be none of…
This is one of the stranger problems in biology, and it went unsolved for a long time because every intuitive answer fails. The roots are not pushing hard enough. There…