This doesn’t involve an attempt to detect how birds sense something. In addition, the decoys are made to resemble the birds, which is part of what might influence the birds’ behavior. This isn’t analogous to Scheich’s experiment, in which the battery was not made to look like prey.

This doesn’t involve an attempt to determine whether the animals can hear things. Rather, it’s an attempt to determine how it reacts to its own cries. This isn’t analogous, because Scheich wasn’t trying to figure out how the platypus reacts to something it produces itself.

This is the most analogous experiment. Just as Scheich used a battery that emits electric currents to determine whether the platypus detects prey by sensing electric fields, (C) involve use of an object that emits something (heat) to determine whether an animal detects prey by sensing the thing emitted.

This doesn’t involve an attempt to determine whether fish can sense something emitted by an object. Rather, the object in this case looks like the fish’s prey, which is part of how the fish is attracted to the object.

This doesn’t involve an attempt to determine whether the animal can sense something emitted by an object.