The Journal of experimental zoology . M ^ , 4 • ^ft F^ ^ ?> * » V SESF? ^?ji^l ^-?^ 10. The Journal of Experimental Zoology, vol. ii. MODIFIABILITY IN BEHAVIOR OF SEA ANEMONES. BY H. S. JENNINGS. A thorough study of the modifiabiHty of reactions to externalstimuH in lower organisms seems at present one of the greatdesiderata in the study of animal behavior. Recent work hasbeen devoted largely to the study of sharply defined forms ofreaction and to the discovery of conditions under which theseforms appear in the typical way. As a result there is a wide-spread impression that the
The Journal of experimental zoology . M ^ , 4 • ^ft F^ ^ ?> * » V SESF? ^?ji^l ^-?^ 10. The Journal of Experimental Zoology, vol. ii. MODIFIABILITY IN BEHAVIOR OF SEA ANEMONES. BY H. S. JENNINGS. A thorough study of the modifiabiHty of reactions to externalstimuH in lower organisms seems at present one of the greatdesiderata in the study of animal behavior. Recent work hasbeen devoted largely to the study of sharply defined forms ofreaction and to the discovery of conditions under which theseforms appear in the typical way. As a result there is a wide-spread impression that the behavior of lower organisms is com-posed of invariable reflexes, occurring always in the same wayunder the same external circumstances. This is far from thetruth and leads, as it seems to the writer, to a fundamentallyfalse conception of the nature of animal behavior. Inner statesand changes are fully as important in determining behavior as areexternal stimuli, modifying fundamentally the reactions whichthe latter produce. The present studies are devoted to an analysisof some of these
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