Somatically distinctive as is the Seri at rest, he (or she) is much more so in motion—though the characteristics so readily caught by the eye are not easily analyzed and described. Perhaps the most conspicuous element in their walk is a peculiarly quick knee movement, bringing the foot upward and forward at the end of the stride; this merges into an equally quick thrust of the foot forward and downward, with toe well advanced, toward the beginning of the next stride; and these motions combine to produce a singular erectness and steadiness of carriage, the body moving in a nearly direct line with a minimum of lateral swaying or vertical oscillation, while the legs neither drag nor swing, but spurn the ground in successive strokes. Thus the walk seems notably easy and graceful, while the walker carries an air of alertness and reserve power, as if able to stop short at any point of a pace or to bolt forward or backward or sidewise with equal facility; he simulates the “collected” animal whose feet tap the ground lightly and swiftly while his body appears to yield freely to voluntary impulse. In this deer-like or antelope-like movement all the Seri are much alike, and all are decidedly removed from their neighbors, even the light-footed Papago. The component motions are most conspicuous in leisurely walking, though the resultant movement is more striking in rapid walk or the incredibly swift run of youths and adults. The general movement is akin to that shaped by the habit of carrying burdens balanced on the head, as the Seri women actually carry their water ollas for astonishing distances; but the carriage is shared—indeed, best displayed—by the warriors and growing boys, who are not known to carry water in this way.