Arizona has added a new species of bat to the list of night-flying creatures in the state. Citizen scientists and DNA evidence helped confirm that endangered Mexican long-nosed bats are there.

Every summer between May and October, as they migrate south toward Mexico, a colony of some 20,000 Mexican free-tailed bats make a flood control tunnel their temporary nesting spot.

FLAGSTAFF, Ariz. (AP) — Scientists have long suspected that Mexican long-nosed bats migrate through southeastern Arizona, but without capturing and measuring the night-flying creatures, proof ...