A 2005 molecular phylogeny, based on rDNA analysis, suggests that salamanders and caecilians are more closely related to each other than they are to frogs. Source: Internet
A clicking sound sometimes produced by caecilians may be a means of orientation, as in bats, or a form of communication. Source: Internet
By this time, the caecilian has constructed a burrow and is living on land. citation The ringed caecilian (Siphonops annulatus) resembles an earthworm In the majority of species of caecilians, the young are produced by vivipary. Source: Internet
In caecilians, as in snakes, only the right lung attains any size or development. Source: Internet
Frogs have been caught on fish hooks baited with red flannel and green frogs (Rana clamitans) have been found with stomachs full of elm seeds that they had seen floating past. citation Toads, salamanders and caecilians also use smell to detect prey. Source: Internet
Many caecilians and some other amphibians lay their eggs on land, and the newly hatched larvae wriggle or are transported to water bodies. Source: Internet