Answer:
Runners
Explanation:
stems are usually upright and prop up the plant to gather sunlight, however, some stems grow along the ground. These stems are called runners and the plant itself is called a stolon. Runners are involved in asexual reproduction of plants. They have nodes along them which can grow into another plant.
Folds are bends in rocks whereas faults are displacements of rocks that were once connected to a fault line.
They both may have gone to a chilly area from their instincts.