Complex sentence: The diet consists of reptiles, birds and small mammals, particularly microbats which they catch by dangling from stalactites in caves, which they commonly inhabit, and snatch them out of the air as they fly past.
Split into simpler sentences: The diet consists of reptiles, birds and small mammals, particularly microbats. The snakes catch the bats by dangling from stalactites in caves, which they commonly inhabit, and snatch them out of the air as they fly past.