Complex sentence: Fott display their hunting prowess by either stuffing and mounting the bodies of their prey or making craft items and furniture out of them and displaying them in their living quarters in a trophy room called a "den".
Split into simpler sentences: Fott display their hunting prowess by either stuffing and mounting the bodies of their prey or making craft items and furniture out of them. These trophies are displayed in their living quarters in a special trophy room called a "den".