Scientists have found a way to sample DNA out of the air on a large scale — making it possible to one day track the health ...

But Garrett is curious if there might also be white-winged vampire bats inside ... But biologists can now track the elusive animals via tiny bits of DNA the swine leave behind in puddles ...

Most techniques would likely spook any animals roosting ... trapping free-floating DNA, which Garrett can analyze later for the presence of not just white-winged vampire bats, but any mammal.

Most techniques would likely spook any animals roosting here ... trapping free-floating DNA, which Garrett can analyze later for the presence of not just white-winged vampire bats, but any mammal. If ...