there permanently. There is a clinic inside Bat World Sanctuary that serves as a rehabilitation center for sick or injured bats. It is a simulated natural habitat with different features that cater to specific types of bat in order to lower the stresses that bats experience from being captive. Annually, as many as 1,500 rehabilitated bats are released back to the wild. Lollar and the staff at the sanctuary have also launched a bat house project, where they would remove unwanted bats from local buildings free of charge as long as the building owners agreed to hang bat houses close to where the bats formerly entered the buildings. The bat houses were also provided for free through the program. Observations by Bat World Sanctuary Founder Amanda Lollar and Bat Conservation International led researchers at the University of Texas at Austin and Texas A&M University to conclude that male bats create songs to attract females and warn other males to stay away. The sanctuary has also hosted a colony of bats to assist with research conducted at the University of Colorado Denver, and has assisted scientists at Cornell University in the study of acoustic mimicry of visual warning signals by echolocating bats. References External links Bat conservation Animal sanctuaries Non-profit organizations based in Texas