Complex sentence: Because most sarlacci inhabit isolated environments and rely on prey to stumble into their pit, they rarely feed; wherefore, the digestive system dissolves prey into nutrients over a period of several thousand years.
Split into simpler sentences: Because most sarlacci inhabit isolated environments and rely on prey to stumble into their pit, they rarely feed. As a result, sarlacci have evolved an efficient digestive process, which slowly dissolves prey into nutrients over a period of several thousand years.