The Mexican free-tailed bat is a medium-sized bat known for its long, narrow wings and distinctive tail that extends beyond its tail membrane. This species is found throughout the Americas, from the southern United States to Argentina. They are highly social and often roost in large colonies, sometimes numbering in the millions. These bats are nocturnal and primarily feed on insects, including moths and beetles, which they catch in flight. They are known for their fast flying abilities, reaching speeds of up to 99 miles per hour. The Mexican free-tailed bat plays an important role in controlling insect populations.