QUICK SEARCH:   [advanced] Author: Keyword(s):
Home     Help     Feedback     Subscriptions     Archive     Search     Table of Contents

This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Email this article to a friend Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Google Scholar Articles by HORRIDGE, G. A. Search for Related Content PubMed PubMed Citation Articles by HORRIDGE, G. A.

Journal of Experimental Biology 44,275-283 (1966)
Published by Company of Biologists 1966

Direct Response of the Crab Carcinus to the Movement of the Sun

G. A. HORRIDGE ¹

¹ Gatty Marine Laboratory and Department of Natural History, St Andrews

1. The eyes of the crab follow the movement of the sun if stationary landmarks, which would arrest the eye movement, are obscured.

2. Therefore, even if the eyes do not move when the crab is in a normal environment, the sun's movement is certainly seen by the crab.

3. The eye movements in response to tilting the whole animal only partially compensate for the body tilt. Therefore an obvious contrasting object such as the sun is not absolutely stabilized on the retina in tilting.

4. This sensory ability of the crab could form the basis of a compass response with a minimum latency of 10 sec.

This article has been cited by other articles:

				J. L. GOULD Sun Compensation by Bees Science, February 1, 1980; 207(4430): 545 - 547. [Abstract] [PDF]