Behavior;Description emerging;"The animal is emerging from the subterranean part of the spring to the surface pool. The behavior starts when the head of the animal first appears from the subterranean corridor and stops when the whole animal emerges to the surface pool or retreats underground." outside;"The whole animal is present in the surface pool. The animal is still or moving around the pool." retreating;"The animal is retreating from the surface pool to the subterranean part of the spring. The behavior starts when the head of the animal first disappears into the subterranean corridor and stops when the whole animal retreats underground or returns to the surface pool." inside;"The animal is not present in the surface pool, the whole body is underground."