Complex sentence: The second largest order of mammals, bats comprise about 20% of all classified mammal species worldwide, with about 1,240 bat species traditionally divided into two suborders: the largely fruit-eating megabats, and the echolocating microbats.
Split into simpler sentences: The second largest order of mammals, bats comprise about 20% of all classified mammal species worldwide, with about 1,240 bat species. These were traditionally divided into two suborders: the largely fruit-eating megabats, and the echolocating microbats.