“Eventually, the shrimp is allowed full access to the gills and mouth cavity. All this is done with no attempt to harm the shrimp, which would no doubt make a tasty morsel. In no time at all the location of these shrimp becomes well known, and the fish can be seen literally lining up to wait their turn.”
L. P. Lester and R. G. Bohlin, The Natural Limit to Bi0logical Change, Prober Ministries Intenational, 1984, p. 31