For example , examination of videotapes from hunting episodes during the sample period reveals that very short cooperative activities are frequently embedded into longer hunting segments that we have not coded as cooperative time .
Short cooperative activities were especially unlikely to be recorded in field notes .
Examination of videotapes from hunting episodes during the sample period reveals that very short cooperative activities are frequently embedded into longer hunting segments that we have not coded as cooperative time .
Short cooperative activities were especially unlikely to be recorded in field notes .