Time, love and species. Sakai T, Ishida N. Journal Article 2001; 22(4): 222-228 PubMed PMID: 11524627 Keywords: Animals, Circadian Rhythm, Drosophila:physiology, Reproduction:physiology, Species Specificity,. Citation : Physiological and behavioral phenomena of many animals are restricted to certain times of the day. Many organisms show daily rhythms in ..... Read abstract Full text PDF