By: Nick and Justin. Mussels & Diving Beetles. Mussels. Mussels. Freshwater mussels live in sand and gravel at the bottom of rivers and streams. Few species of mussels are accustomed to the quiet water and muddy depths of lakes, ponds, and reservoirs. . Mussels (cont.).
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By: Nick and Justin
Mussels & Diving Beetles
Freshwater mussels live in sand and gravel at the bottom of rivers and streams. Few species of mussels are accustomed to the quiet water and muddy depths of lakes, ponds, and reservoirs.
Food drifts to mussels, unlike other animals. Mainly tiny plants and animals called plankton drift to them. By drawing water inside their shells through a siphon, their gills filter out food and take in oxygen.
Mussels usually stay in the same spot, but a special “foot” helps them burrow and allows limited travel if disturbed by floods or drought. The foot also helps anchor them against strong currents and may prevent animals from trying to eat them. A mussel's shell, however, provides its main protection from predators. Their hard, calcium-based shells consist of two halves joined by a hinge.