The brain is the final frontier. As I asked last week, have researchers even discovered the full anatomical structure and physiology of the brain? As one clinical psychologist told me, innovators are ...

A Harvard professor opened up a cat and beheld certain belly muscles tickling its heart. That was of such profound physiological import that the professor, Walter Bradford Cannon, a great physiologist ...

A phytomer (left) from the main body axis of a vegetative culm in barley (drawn according to Forster et al., Ann Bot. 2007). On the right, a main culm of barley which can be further subdivided into ...