(A) Mark-directed behavior by subject to a real mirror
immediately after release from being marked. A narrow Plexiglas mirror,
41.9 cm × 101.6 cm × 0.32 cm is affixed in a vertical
orientation to the exterior of one of the reflective walls (Wall 6).
During this session, the mirror was the best reflective surface in the
subject's environment. The faint white line on the wall indicates the
location of mirror. (B) The dolphin at Wall 1, the best
reflective surface in the session, exhibiting late sham-directed
behavior: a continuous and repetitive sequence of 12
dorsal-to-lateral-ventral flips exposing the location of the
sham-marked area of his body, the underside and tip of the right
pectoral fin, to the reflective surface. This unusual behavioral
sequence continued for 32 sec.