About Primitive Sponge
The Primitive Sponge is seen in the episode "SB-129" and briefly in a clip at the end of "Ugh." He is SpongeBob SquarePants' ancestor.
Primitive Sponge Photos
The Primitive Sponge is seen in the episode "SB-129" and briefly in a clip at the end of "Ugh." He is SpongeBob SquarePants' ancestor.
