Data and internship opportunities available to new students. Bats play critical roles in ecosystems globally. However, key aspects of bat biology, from the causes and consequences of population declines to their ability to transmit viruses to people, remain poorly understood. This AccelNet project establishes the Global Union of Bat Diversity Networks (GBatNet) to fill key knowledge gaps and create an international structure to accelerate discoveries across disciplines and borders. The network of networks fosters new avenues for global research exchange through coordination of joint research, education, and outreach. GBatNet links 14 regional and global networks with a shared vision to address pressing questions in bat biology of direct relevance to ecosystem and human health.