This is the "Petrificious Totalios" the most deadly snake on earth. The "Grand Gecko" uses its burrows to catch mice.
This is an act of symbiosis. The form of this act is called commensalism. The definition of this is one organism benefits and the other is mutual.
Although these animals may be fake, this act is real. In this relationship, the "Petrificious Totalios" already burrows for its own reasons. While the "Grand Gecko" uses the burrow to it's advantage and catches mice in the burrows.