What type of ecological interaction is this? toad fish live on the bottom of the ocean. They bury themselves in the sand/mud and wait to ambush their prey, crustaceans and mollusks

Predation

Explanation:

There are 4 main types of ecological interactions (these are 2 way interactions), and they are mutualism, commensalism, competition, and predation. This is predation because the toad fish are the predators, while the crustaceans and mollusks are prey. A basic definition for predation is attacking or plundering another, which is what the toadfish is doing to its prey.