They eat insects and mosquitoes (helping to control viruses spread by the insects), and lower the need for pesticides, pollinate flowers and disperse seeds for countless trees and shrubs growth.
"Chinese artists have long used five bats to represent the five blessings: health, long life, prosperity, love of virtue, and a tranquil, natural death. The bats often are bright red— the color of joy."
"White-nose Syndrome (WNS) is a fungal disease that has killed millions of bats in North America. The disease is caused by a fungus from Eurasia, which was accidentally transported here by humans. The fungus, Pseudogymnoascus destructans, invades the skin of hibernating bats and disrupts both their hydration and hibernation cycles.
WNS has killed at least 5.7 million bats since it arrived in North American in 2006. Some winter colonies have seen 100% fatality. "