Bottom-dwelling describes organisms, particularly aquatic animals, that live on or very near the seafloor, lakebed, or riverbed. These creatures, also known as benthic organisms, have adapted to a life in close proximity to the substrate, where food sources, shelter, and environmental conditions differ significantly from the open water. Their adaptations can include specialized feeding mechanisms, camouflage, and the ability to withstand low light levels, high pressure (in deep-sea environments), and varying temperatures. They are a crucial component of the aquatic food web, playing roles in nutrient cycling and sediment processing.
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