LYNN M. STONE / Wild grey Horse stallion (left) touching muzzles with black wild horse mare, Pryor Mountain National Wild Horse Reserve, Wyoming, USA

Gerrit Vyn / A Little Brown Bat ( Myotis lucifugus) clings to a tree on 20 degree F day outside Aeolus Cave. Despite the apparent health of this individual, it is supposed to be in deep hibernation. White-nose syn...

Gerrit Vyn / Vermont Department of Fish and Wildlife biologist Scott Darling holds dead bats found outside Vermont's Aeolus Cave. Bats are infected with White nose syndrome with causes a distinctive ring of fungal...

Gerrit Vyn / A researcher holds a dead Little Brown Myotis (Myotis lucifigus) found in the snow outside Aeolus Cave. The bats hibernating within the cave are infected with the deadly White-nose Syndrome. This dise...

Gerrit Vyn / Live and dead Little Brown Bats (Myotis lucifugus) in fected with White nose syndrome, in Aeolus Cave, the largest bat hibernacula in New England. This disease causes a distinctive ring of fungal grow...

Gerrit Vyn / Live and dead Little Brown Bats (Myotis lucifugus) in fected with White nose syndrome, in Aeolus Cave, the largest bat hibernacula in New England. This disease causes a distinctive ring of fungal grow...

Gerrit Vyn / Dead Little Brown bats (Myotis lucifugus) hang from a crevice outside the entrance to Aegolus Cave. Starving bats infected with white-nose syndrome often exit their hiberncula during winter where they...

Gerrit Vyn / The corpses of dead Little Brown Bats (Myotis lucifugus) lie on ice outside of Aegolus Cave, Starving bats infected with white-nose syndrome often exit their hiberncula during winter where they quickl...

Gerrit Vyn / Live and dead Little brown Bats (Myotis lucifugus) hang outside Vermont's Aeolus Cave, the largest bat hibernacula in New England. Starving bats infected with white-nose syndrome often exit their hib...

Gerrit Vyn / Dead Little brown Bats (Myotis lucifugus) in a crevice outside of Vermont's Aeolus Cave. Starving bats infected with the deadly White-nose syndrome often exit the hiberncula where they quickly freeze....

Gerrit Vyn / Little brown Bats (Myotis lucifugus) hibernating in Aeolus Cave. White-nose syndrome is decimating the caves' bat population, a deadly disease which causes a distinctive ring of fungal growth around t...

Gerrit Vyn / Little brown Bats (Myotis lucifugus) hibernating in Aeolus Cave. White-nose syndrome is decimating the caves bat population, a deadly disease which causes a distinctive ring of fungal growth around th...

Gerrit Vyn / Indiana Bats (Myotis sodalis) infected with white-nose syndrome, a deadly disease which causes a distinctive ring of fungal growth around the muzzles and on the wings of cave bats. Ulster County, New...

Gerrit Vyn / Indiana Bat (Myotis sodalis) large flock infected with white-nose syndrome, a deadly disease which causes a distinctive ring of fungal growth around the muzzles and on the wings of cave bats. Ulster C...

Gerrit Vyn / Indiana Bat (Myotis sodalis) large flock infected with white-nose syndrome, a deadly disease which causes a distinctive ring of fungal growth around the muzzles and on the wings of cave bats. Ulster C...

Gerrit Vyn / Indiana Bat (Myotis sodalis) infected while hibernating with white-nose syndrome, a deadly disease which causes a distinctive ring of fungal growth around the muzzles and on the wings of cave bats. U...

Gerrit Vyn / Eastern Pipistrelle (Pipistrellus subflavus) infected with white-nose syndrome, a deadly disease which causes a distinctive ring of fungal growth around the muzzles and on the wings of cave bats. Ulst...