Most people forget about the unforgettable experience found in the exploration of natures mysterious underground world of caves. Caves are natural openings within the earth large enough for a person to enter. They gradually extend beyond the reach of the light from the surface area. Cave is used to describe one underground room. When caves contain connecting rooms, they are called caverns.
People tend to think of caves as barren, lifeless areas.
This could not be farther from the truth. Many animals and microscopic organisms are found to be inhabitants of caves. Speleology is the science of caves. It consists of recording physical, biological, and archeological data. It is a portion of this data that this lesson will present.