Leif Saul hangs out with a neuron

The private life of earthworms
Every summer I am shocked, simply shocked by the wanton hedonism that transpires in my tomato ...
The versatile pharynx
Here’s a body part you’ve probably never seen in isolation — and almost certainly not ...
How a long bone grows longer
The process by which your bones lengthen (during childhood and adolescence) is known as ...
The blind spot in the human eye
Normally, the blind spot goes unnoticed, for two reasons.  First, each eye fills in the gap in ...