First Logic; Raptor is Born Free in Cage without Raptor;

the Cage is the set of limits one must find in order to understand the purpose of the Cage.

Raptors are not bound by the confines of the Cage, Raptors are born in them, the Raptor has fun in the Cage. the purpose of the Cage is for the Raptor, so the Raptor becomes the purpose.

if the Cage is full of Dodo's, he kills them until they have evolved into Raptors.

A Cage with only Raptors is the Raptors favorite Cage