Mutualism
Similar to the relationship shared between the oxpecker and the buffalo, there were also Frenzy Beasts that lived together for their own respective goals.
In the case of the oxpecker and the buffalo, the oxpecker feeds on the ticks and other insects harming the buffalo, getting a steady stream of food. The buffalo in return experiences a pest control, prolonging its life. They share a symbiotic relationship that is mutualism in nature.
The relationship the Hunter Clams and the Lava Turtles share is closer to a bond. Lava Turtles have innately hot bodies, existing at temperatures that other organisms can't hope to survive. They have bulky bodies that are difficult to move around in.