Rock or Sponge: Unraveling Marine Mysteries

The crew inspects a mysterious object found among marine rocks on the seafloor.
Earthile Rock or Earthile Sponge? Chris Kelly just typed in all caps question mark, question mark. That's how I feel. You want to poke at it? Yeah. This guy here? Yeah. Is it a rock or a sponge? It's rockish, isn't it? Pick it up and bring it in for a close view. Where did you come from? could have rolled in place from somewhere else. Looks like a perfect evil welcome. Yeah. it's so porous they're kind of having but a lot of the volcanic rock yeah we get these vesicles vesicular if it is basalt vesicular basalt where uh the gas escapes bubbles to form?