What animal did Samson tear apart with his bare hands?

Answer: A lion

Near Timnah a young lion roared at him. The Spirit of the LORD came upon Samson and he tore it apart as one would a young goat.

“Then Samson went down to Timnah with his father and mother and came to the vineyards of Timnah. Suddenly a young lion came roaring at him, and the Spirit of the LORD came powerfully upon him, and he tore the lion apart with his bare hands as one would tear a young goat. But he did not tell his father or mother what he had done.”— Judges 14:5-6 (BSB)