As of 2020, account for about 20% of the known mammal species!!! www.sciencefocus.com/nature/why-are-there-so-many-species-of-bat/ mentions some reasons:
- they can fly, so they can move out further
- their eating habits are highly specialized
- Placentalia subclade
- Placentalia
- Theria subclade
- Theria
- Mammal subclade
- Mammal
- Synapsid subclade
- Synapsid
- Amniote subclade
- Amniote
- Tetrapod subclade
- Tetrapod
- Fish subclade
- Fish
- Vertebrate
- Chordate subclade
- Chordate
- Animal subclade
- Animal
- Eukarya subclade
- Eukaryote
- Species
- Taxonomy
- Biology
- Natural science
- Science
- Ciro Santilli's Homepage