Question

A four-phase syntactic chain for this behavior is activated when mice are sprayed with water in a classic fixed action pattern. A species in genus Labroides named for this (20[1])behavior is the only fish that can pass the mirror test. The sabertoothed blenny aggressively mimics a blue-streaked fish that does this behavior at dedicated stations on coral reefs. In a troop of Japanese macaques, (20[1])hierarchy is (*) enforced by this (20[1]10[1])social behavior, which the monkeys do for hours at a time. (10[1])Wrasses feed on ectoparasites while providing their clients this service. Crocodiles generously refrain from eating plover birds that are engaged in this behavior. For 10 points, grooming is a form of what process by which animals shed dirt? ■END■

ANSWER: cleaning [or cleaning symbiosis or cleanerfishes or cleaner wrasses; accept grooming or allogrooming or autogrooming until it is read; accept preening; accept licking; accept eating OR feeding on parasites or worms or bugs, but prompt on feeding or eating alone; prompt on symbiosis or mutualism or parasitism; reject “bathing” or “swimming”]
<Joseph Krol, Science - Biology&gt; ~28056~ &lt;Editor: Adam Silverman>
= Average correct buzz position