Brain size predicts foraging and escaping abilities in the paddy frogs

The three experiments revealed that successful individuals with spatial learning and escaping had relatively larger brains than unsuccessful ones in three species of the paddy frogs. We first provided experimental evidence for whole-brain size as a predictor of cognitive abilities in the paddy frogs. Our findings support the claim that brain size can reflect an animal's spatial learning and escaping abilities and enhance our understanding of larger brains evolved with better cognitive abilities in frogs. The authors declare that they have no conflict of interest. Figure S1 Experiments of behaviour and the total time spent cognition in the paddy frogs. Figure S2 Difference in total time spent escaping of successful individuals between experiment 2 and experiment 3 in the wild Hylarana guentheri (a) and the wild Fejervarya multistriata (b). Table S1 Difference in brain size between successful and unsuccessful individuals for the three species of frogs when controlling effects of sex and SVL. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.