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Antlion, wave propagation in sand (The)

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  • Storyboard
 
  00:07:00  2013  16/9  Color  Sound

At the Institute for Research on the Biology of Insect (IRBI, Univ. de Tours, France), Jérôme Casas and his co-workers are interested in the mechanics of solids. The latter allows the larve of the antlion to attract and kill its prey using a trap. The insect larva digs a conical hole in the sand, then waits for a prey to fall into , lurked at the bottom of it. Ants are usually its victims.
The antlion is able to detect sand landslides caused by the legs of its prey, attempting to escape.This sensory perception allows the antlion to sandblast his target who is disoriented until drowning. The simplicity of its trap is actually an excellent model for scientists to understand the physical properties of the sand.

Producer : CNRS Images
 
Identification
Audiovisual processReal shots. Use of macroscopic images.
Voice over. Music.
NotesIRBI : Institut de recherche sur la biologie de l'insecte.
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kThematique

Animal biology ; Ethology

Technical Sheet
Item No.4072
VersionFrench ; English ; International version
LaboratoryUMR7261