You will be given a definition of a task first, then some input of the task.
Given scientific fact as input, generate the question from this fact such that it can be answered from the input.

The size and symmetry of a beetle's or an elk's antlers or a grasshopper's song communicate rather clearly their state of health.
Output:
The size and symmetry of a beetle's or an elk's antlers or a grasshopper's song communicate rather clearly their state of what?