Color discrimination in wild boars Yusuke EguchiHajime TanidaTadashi Yoshimoto OriginalPaper Pages: 1 - 7
Dive bout organization in the Chinstrap penguin at seal island, antarctica Yoshihisa Mori OriginalPaper Pages: 9 - 15
Social organization in two primitive attine ants,cyphomyrmex rimosus and myrmicocrypta ednaella, with reference to their fungus substrates and food sources Takahiro MurakamiSeigo Higashi OriginalPaper Pages: 17 - 25
A division between foraging range and territory related to food distribution in the red fox Hideharu Tsukada OriginalPaper Pages: 27 - 37
Influence of brood size and offspring size on parental investment in a biparental cichlid fish,Neolamprologus moorii Kenji Karino OriginalPaper Pages: 39 - 43
Prolonged copulation and spermatophore size ejaculated in the sulfur butterfly,Colias erate (lepidoptera: pieridae) under selective harassments of mated pairs by conspecific lone males Mamoru WatanabeYasuyuki NakanishiMinetaka Bon’no OriginalPaper Pages: 45 - 54