The Graboids are the main antagonists of the 1990 American comedy-horror film Tremors and its five sequels.

Prehistoric subterranean mollusks, four of these serpentine creatures emerged in 1990 near the small one-horse town of Perfection, Nevada, where they proceeded to kill several of the townspeople.


Graboids are large 30-foot limbless mollusks resembling giant tan earthworms. Their tough hides are lined with rows of spikes used to push themselves through loose soil. A Graboid's mouth consists of a large black beak with a wide upper jaw, a thin lower jaw, and a thin mandible on either side. Inside of a Graboid's mouth are three eel-like tongues with their own mouths and horn-like projections on each "jaw".

The African species of Graboid is much larger in size, with a darker brown color and numerous ridges of spines spiraling down the length of its body. It lacks the beak of its American counterpart, having a tooth-filled maw like that of a lamprey. Its tentacles are capable of detaching and slithering about autonomously.

Powers and Abilities

Graboids possess the following powers and abilities:

  • Armored hide
  • Burrowing
  • Tentacles
  • Enhanced hearing
  • Tentacle autonomy (African only)
  • Breaching out of the ground (African only)
  • Corrosive acid spit (African only)


One of the Graboids is killed by running into a concrete aqueduct wall, one is killed via extensive gunfire, one is blown up by feeding it homemade explosives, and one is tricked into tunneling out of a cliff-face, where it falls to its death.


  • According to the Syfy Channel, Graboids' closest living relatives are cuttlefish.

Photo Gallery

Community content is available under CC-BY-SA unless otherwise noted.

Fandom may earn an affiliate commission on sales made from links on this page.

Stream the best stories.

Fandom may earn an affiliate commission on sales made from links on this page.

Get Disney+