a nonprofit group working to end the extinction of bat species worldwide, teamed up with residents from southeastern Arizona, southwestern New Mexico and west Texas for the saliva swabbing campaign.

More: Spiders, birds and bats: 10 spooky critters in Texas that are misunderstood The species was first spotted in the United States in 2013, and, nearly a decade later, the second specimen was found ...

Researchers analyzed saliva the nocturnal mammals leave behind when sipping nectar from plants and residential hummingbird ...