Effect of caffeine on spiders. Computer artwork of the orb web of a garden spider (Araneus diadematus) exposed to caffeine. Caffeine is a plant alkaloid found naturally in foods such as coffee beans,tea,kola nuts and cacao beans. A normal orb web consists of radiating threads and a sticky spiral hub (see Z430/519). A spider fed on caffeine-dosed flies produces an erratic and incomplete web,with many parts completely absent. Originally published in NASA Tech Briefs,April 1995 | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / NASA |
Taille de l’image : | 3800 px × 4155 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |