File:Living gecko hunting the pointer of a mouse.webm
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Living_gecko_hunting_the_pointer_of_a_mouse.webm (file size: 97.74 MB, MIME type: video/webm)
Summary
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English: Clinging to the screen of a computer, a real gecko Hemidactylus frenatus is hunting the pointer of the mouse, assimilated to a tasty prey. The arrow is followed for more than a minute by the young reptile, perceiving the silhouette of something like an insect. With the mouse, the user of the computer can move the cursor to cause the almost automatic movement of the gecko, unable to make visually the difference between a small triangular virtual shape and a real animal on the run. It is thus a sensory illusion, where the pointer acts like a lure to influence an instinctive animal behavior. Usually, these geckos feed on small butterflies attracted by light through window panes, where they are easily captured. In addition to the similar appearance of the prey with ordinary food, the confusion can also be explained by the juvenile predator, poorly experienced. This image won the 3rd prize of the Wiki Science Competition category Wildlife and nature from France in 2019.
Français : Accroché à l'écran d'un ordinateur, un réel gecko Hemidactylus frenatus pourchasse le pointeur de la souris qu'il assimile à une proie appétissante. La flèche est poursuivie durant plus d'une minute par le jeune reptile en chasse, qui croit voir la silhouette d'un insecte. Via la souris, l'utilisateur de l'ordinateur peut déplacer le curseur pour entraîner le mouvement quasi-téléguidé du gecko, incapable visuellement de faire la différence entre une forme virtuelle triangulaire de petite taille et un véritable animal en fuite. Il s'agit donc d'une illusion sensorielle, où le pointeur agit comme un leurre pour influencer un comportement instinctif. Habituellement, ces geckos se nourrissent de petits papillons attirés par la lumière à travers les carreaux des fenêtres, où ils sont facilement capturés. Outre l'aspect similaire de la proie avec une nourriture ordinaire, la confusion peut aussi s'expliquer par le caractère juvénile du prédateur faiblement expérimenté. Cette image a remporté le 3e prix de la Wiki Science Competition catégorie Wildlife and nature from France en 2019.
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Own work Open-source software in the background © OpenOffice.org |
| Author | Basile Morin |
| Camera location |  | View this and other nearby images on: OpenStreetMap |  |
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This image was uploaded as part of Wiki Science Competition 2019. |
Assessment
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This file was selected as the media of the day for 23 November 2019. It was captioned as follows:
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File history
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| Date/Time | Dimensions | User | Comment | |
|---|---|---|---|---|
| current | 11:22, 6 November 2019 | (97.74 MB) | wikimediacommons>Basile Morin | User created page with UploadWizard |
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