Specific Behavioral Responses of Hyla japonica Tadpoles to Chemical Cues Released by Two Predator Species TAKAHARA, Teruhiko and KOHMATSU, Yukihiro and MARUYAMA, Atsushi and YAMAOKA, Ryohei, Current Herpetology, 25, 65-70 (2006), DOI:http://dx.doi.org/10.3105/1345-5834(2006)25[65:SBROHJ]2.0.CO;2