rdfs:comment
| - Antlions live in underground colonies, typically situated in sandy areas such as beaches. They usually hide under the sand, waiting for anything to venture near, at which point they quickly surface and tear it apart. Their aggression is not limited to humans or the Combine, and they will attack other xenofauna such as headcrabs. Antlions sense a victim's presence via vibrations transmitted through loose soil or sand. This makes it possible to safely venture through Antlion territories by walking solely over foreign items placed on the sand, or by walking across rocks. Once on the surface, Antlions can fly short distances to rapidly approach their prey. The Combine refer to Antlions as "virals," "biotics," or "exogens", as a soldier can be heard mentioning a "full biotic overrun" of the Nov
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abstract
| - Antlions live in underground colonies, typically situated in sandy areas such as beaches. They usually hide under the sand, waiting for anything to venture near, at which point they quickly surface and tear it apart. Their aggression is not limited to humans or the Combine, and they will attack other xenofauna such as headcrabs. Antlions sense a victim's presence via vibrations transmitted through loose soil or sand. This makes it possible to safely venture through Antlion territories by walking solely over foreign items placed on the sand, or by walking across rocks. Once on the surface, Antlions can fly short distances to rapidly approach their prey. The Combine refer to Antlions as "virals," "biotics," or "exogens", as a soldier can be heard mentioning a "full biotic overrun" of the Nova Prospekt facility; however, the term biotic may also be a general term used by the Combine for any hostile life form, including Antlions and headcrabs. In Half-Life 2, a swarm of five Antlions will usually emerge when the sand is disturbed. If the player is still on sand when one is killed, another will spawn to replace it. Half-Life 2: Episode One introduces the concept of Antlion burrows, essentially large holes in the ground from which Antlions spawn. Unless covered, burrows continually spawn Antlions to replace those killed. Refuge may be sought in water, since Antlions cannot swim and quickly drown when they come into contact with it. It is also possible to flip the Antlions over with a burst from the Gravity Gun, allowing for a quick escape. The Antlion group mentality makes up for their lower health totals: an individual Antlion is relatively easy to kill, but its friends will attack while the player is occupied. Antlions are the only enemies in Half-Life 2 that gib rather than becoming ragdolls if killed with a strong weapon. The behavior of Antlions in respect to sound, vibration and aversion to water is analogous to that of Sandworms in the Dune universe. However, while the use of Thumpers to produce powerful vibrations attracts Sandworms, Antlions are repelled by the very same tactic, possibly experiencing sensory overload or pain in their presence, due to their sensitivity to vibration. Similar fictional creatures include the graboids of the film Tremors, which react in a similar way to loud noises such as explosions, and the arachnid warriors in the film version of Starship Troopers.
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