Blindfish - are translucent fish that have no eyes. Amblyopsis spelaea is the famous blindfish that can be found in Mammoth Cave and could not survive outside the cave. Blind Crayfish - are crayfish that do not have eyes. They have adapted to the total darkness found in the cave. Calcite - is a mineral composed of calcium carbonate.
Calcite begins to dissolve when carbonic acid from rainwater comes in contact with it.
With this process it would take hundreds of thousands of years to form a large cavern within a cave. Carbonic Acid - is a weak acid formed by the interaction of carbon dioxide and water. It can dissolve limestone. Cave - is an underground cavity that is formed naturally by the dissolving action of acidic groundwater. Cave Coral - are small knobby clusters that are formed by seeping water.