Fig. 2
From: Correlated evolution between body size and echolocation in bats (order Chiroptera)
Phylogenetic mapping for 314 and 15 bat species and families, respectively, of a) echolocation peak frequency (PF), b) body mass (BM), c) echolocation bandwidth (BW), and d) call duration (CD). All variables are represented as log-transformed due to the non-normal distribution of data. Spectrograms of a Pipistrellus pipistrellus call highlighting each trait were included in their respective panel to help visualization