Gripper

Grippers (known on Metroid.com as Mobile flytraps) are large plants that resemble Venus Flytraps that appear in Metroid: Other M. They appear to be a form of ambush predator, lying immobile in well-traveled areas of the Bottle Ship's Biosphere disguised as harmless plants or hiding just below the surface of soil. When Samus approaches, they will dislodge themselves and attempt to eat her, hopping about by means of two wide, leaf-like "wings". If they are successful, they will rapidly drain her energy unless she uses a Bomb to break their grip. When active they are vulnerable to all weapons, but when in their "resting" state they are completely invincible. They can rarely be found freely roaming above ground by using their roots as feet to move about in search of prey and can quickly tunnel into the ground and attack from beneath their target as well.

Variations
Poison Grippers are smaller, purple-colored Grippers that make no effort to conceal themselves and are considerably weaker than their brethren.

Trivia

 * This species can be seen feeding on Reos, one of the rare examples of "monster infighting" in the Metroid series that isn't staged.
 * The Grippers bear a strong physical resemblance to the Bryyonian ULF 18.
 * Grippers seem to possess a great many animal characteristics, including eyes and a bird-like beak. It is thus difficult to determine whether they are true plants, animals mimicking plants, or some hybrid of plant and animal.
 * This hybrid-like physiology is shared by another creature unique to the Bottle Ship, the Groganch.