This picture makes its rounds around blogs & forums recently:

Does it have any scientific backing?
This picture makes its rounds around blogs & forums recently:

Does it have any scientific backing?
There is no scientific backing for this classification.
What is referenced as "Greek" is actually called Morton's toe (name derived from the surgeon who described is as a foot syndrome), but it's so common that this congenital short first metatarsal bone is considered a normal variant of foot shape.
In statuary and shoe fitting it has been called Greek foot, because it was an idealized form in Greek sculpture. It also persisted as an aesthetic standard through Roman and Renaissance periods:
Greek bronze statue of boxer at rest | © Joseph Uj/Flickr
The relative length of the big and second toes varies continuously, so there aren't just two categories of toe length. The mechanisms that determine how Morton's toe is inherited are determined by more than one gene, or by a combination of genetics and the environment. These mechanisms haven't proven to be specific to a geographic area, as referenced by Kaplan.