Burrowing behaviour found in various higher animal groups like Amphibia, Reptilia and Mammalia are interesting from the evolutionary point of view. A brief account would help understand the importance of this behaviour.

Burrowing has evolved many times in the animal world. Moving through soil or sediment is widespread in the animal world. The moles and other burrowers among mammals show convergent adaptation to subterranean life in their communication behaviour. Reduction or loss of eyes in them is also noticeable.  Limbless amphibians called caecilians and certain reptiles like burrowing skinks are also adapted to burrowing behaviour.

In frogs, it occurs in two routes. The ‘hind feet first’ route involve a less marked transition. The…

Source by Dr. Fatik Baran Mandal