Movies of 2X sped up C. elegans as they chemotax toward a point source of 10-2 benzaldehyde. The corresponding clip of worms after exposure to benzaldehyde (10-4) for 80 minutes in the absence of food.
Organisms used to closely study and elucidate our understanding of basic biological phenomena that might not be easily researched in advanced organisms. In general, they possess characteristics such as small size, short life span and ease of cultivation.