  It is generally accepted that linear theory of growth of structure under
gravity produces a squashed structure in the two-point correlation function
(2PCF) along the line of sight (LoS). On the other hand, the observed radial
spread out structure known as Finger of God (FoG) is attributed to non-linear
effects, like virial relaxation or random motions in the inner regions of
galaxy clusters, or non-linear terms in collapse theory. In this paper we argue
that the squashed structure associated with the redshift-space ($s-$) linear
theory 2PCF is obtained only when this function is displayed in real-space
($r-$), or when the mapping from $r-$ to $s-$space is trivialized by one of a
series of approximations: the "wide separation" sometimes mistaken by the
"distant observer", the $\mu(r) \sim \mu(s)$ in the cosine of the position
vector with the LoS, or plainly by approximating $s \sim r$. To display the
$s-$space 2PCF properly in a grid in $s-$space requires one to solve for the
mapping function $\bm s(\bm r)$ and its inverse, which exists in the small
gravitational disturbance case. We find this mapping by using plane of the sky
projections of the $r-$ and $s-$ 2PCFs in the simplest case of the linear
Kaiser spectrum with a conservative power-law $r-$space 2PCF. We show that even
in this simple case, a structure quite similar to the FoG is observed in the
small scale region, while in the large scale the expected squashed structure is
obtained. We show that the observed structure is a function of three
parameters: the dimensionless growth rate for visible matter ($\beta$), the
power-law exponent ($\gamma$) and the cosmological distortion given by the
Alcock-Paczy{\'n}ski parameter ($AP$). We conclude that there appears to be the
way of discerning between cosmological and gravitational redshift distortions
avoiding known degeneracies.
