Since Rodrigo Medellin first kept vampire bats in his bathroom as a child, he has dedicated his life to saving them. The ecologist tracks the Lesser Long-nosed bat's epic migration across Mexico, braving hurricanes, snakes, Mayan tombs and seas of cockroaches in order to save the species and the agave plants they pollinate. Sir David Attenborough narrates the curious connection between one of the world’s creepiest mammals and Mexico’s most famous export.

Watch The Bat Man of Mexico on Nature, tonight at 8pm on GBH 2