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…
Maya Linton
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…
Source: Wikipedia
Heavy, loud and operated by exactly one person. Here are twelve.
1. The Weight of It
Source: Wikipedia
Cast iron and steel in a case with a handle, carried with…
The intuitive model of a mosquito bite is that something sharp went into you and the hole is now irritated. Almost none of that is right. There is no single…
The ear is usually described as a funnel with a nerve at the end of it, which makes hearing sound like a straightforward matter of collecting sound and passing it…
Losing teeth as a child is so universal that nobody asks why it happens. Bones lengthen, muscles enlarge, feet go up several sizes, and none of that requires demolishing anything.…