Visiting the Most Massive Bat Colony on Earth!

Check out the largest gathering of mammals on Earth! Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate Subscribe to It's Okay To Be Smart ►► http://bit.ly/iotbs_sub Visit Bat Conservation International to learn more about these amazing species and what we can do to protect them: http://batcon.org/ Thanks to Dr. Sharon Swartz and Dr Kenny Breuer from Brown University for use of their wind tunnel footage: http://www.brown.edu/Departments/EEB/EML/ Mexican free-tailed bats hunt at higher altitudes than any other bat: http://bit.ly/10e5Zpe Doppler radar shows bats intercepting the moth invasion: http://www.youtube.com/watch?v=mvENxTke4Sc Dr. Aaron Corcoran's research on moths jamming bat echolocation (plus VIDEOS!) http://www.sonarjamming.com/ Rainforest regrowth and seed dispersal by bats: http://bit.ly/1nzOBpN Some bats are able to create lift more efficiently than birds: http://www.livescience.com/1245-bats-efficient-flyers-birds.html White nose syndrome: http://en.wikipedia.org/wiki/White_nose_syndrome Produced for PBS Digital Studios Joe Hanson - Host and writer Joe Nicolosi - Director Amanda Fox - Producer, Spotzen IncKate Eads - Associate Producer Katie Graham - Director of Photography Andrew Matthews - Editing/Motion Graphics John Knudsen - Gaffer Dalton Allen - Post-production Intern Theme music: "Ouroboros" by Kevin MacLeod Stock images via Shutterstock ----------- Join us on Patreon! https://patreon.com/itsokaytobesmart Twitter http://www.twitter.com/DrJoeHanson http://www.twitter.com/okaytobesmart Instagram http://www.instagram.com/DrJoeHanson http://www.instagram.com/okaytobesmart Merch https://store.dftba.com/collections/its-okay-to-be-smart Facebook https://www.facebook.com/itsokaytobesmartpbs/​ Learn more about your ad choices. Visit megaphone.fm/adchoices