![Smithsonian Insider – A Halloween roundup featuring recent articles on spiders, bats and rats | Smithsonian Insider Smithsonian Insider – A Halloween roundup featuring recent articles on spiders, bats and rats | Smithsonian Insider](https://insider.si.edu/wp-content/uploads/2009/07/Jamacian_fruit_batm.jpg)
Smithsonian Insider – A Halloween roundup featuring recent articles on spiders, bats and rats | Smithsonian Insider
![Why are bats (flying mammals) so much rarer than mice (flightless mammals)? | Mammals | The Guardian Why are bats (flying mammals) so much rarer than mice (flightless mammals)? | Mammals | The Guardian](https://i.guim.co.uk/img/media/0bbc3d3a339367c05725088ba54edf4c8d275b51/0_406_6016_3610/master/6016.jpg?width=1200&height=1200&quality=85&auto=format&fit=crop&s=51cc709b4a1aba19093f61b22a7d8174)
Why are bats (flying mammals) so much rarer than mice (flightless mammals)? | Mammals | The Guardian
Some people say that bats are just rats and mice with wings. Is this really what these animals are? - Quora
![Study on Bats, Rats Finds that Analysis of Many Species Is Required to Better Understand the Brain | A. James Clark School of Engineering, University of Maryland Study on Bats, Rats Finds that Analysis of Many Species Is Required to Better Understand the Brain | A. James Clark School of Engineering, University of Maryland](http://www.john2117.org/images/flying_bat.jpg)