Complex sentence: The Jacobs Creature is an alleged creature that has been written about and sighted in Northwestern Pennsylvania in the Allegheny National Forest it is a Bigfoot or ape-like creature thought to be a Juvenile from its small size.
Split into simpler sentences: The Jacobs Creature is an alleged creature that has been written about and sighted in Northwestern Pennsylvania in the Allegheny National Forest. It is a Bigfoot or ape-like creature thought to be a Juvenile from its small size.