Fish Flock is an easy-to-use asset that manage a shoal of fish. The fishes move in flock and keep themselves as a group and also avoiding to collide with each. 15 Apr The use of camera traps for studying terrestrial mammals has . a list of known species from the study area (Leite Pitman, unpubl. data). 15 Apr R. Leite Pitman. Duke University Camera traps offer a new tool for conducting inventories of large‐ and medium‐sized terrestrial mammals.