Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Wild-type C. elegans (encircled) crawling in different sections of a modulated sinusoidal channel. The worm shows relatively smooth movement in the adaptable range of channel amplitudes (b-e). In sections beyond this adaptable range (a, f), the worm is unable to move forward.
