Vulture Grub

Banana slug are strange slug/worm like creatures. If they are dead they can be consumed for food, but when alive they can't. If a live slug is picked up/thrown, it emits a beam of red light forwards the sky like a beacon and let out an beeping noise which attracts predators. The beam will flash red if the summoning of a Vulture failed (usually in rooms where they don't appear.), and green when successful. Best used as bait to escape a bad situation. They can be killed with Spears.

When they die they darken in color, and dead slugs may be found near live ones. They respawn in about 4 to 5 cycles.

Trivia

 * It is theorized that they are vulture babies/larvae, but things are still not clear.
 * In the files it's referred to as vulture grub.
 * Vultures will pick the grub up if there is nothing else to find.