control group was composed of all familiar eight tadpoles of the same sibship dyed differently, mixed group was composed of tadpoles of the different sibship that were dyed differently but were familiar and pure group was composed of tadpoles of the different sibship that was indicated by their different coloration and unfamiliar tadpoles on the same glass bowl. The results indicated that there was no difference to the two variables, genetic relatedness and familiarity, to tadpoles making contact to each other. The tadpoles showed relatively elevated levels of contact to unfamiliar tadpoles to familiar tadpoles which indicated acclimation but also assessment. It is necessary for further study to take place.