Barry Mansell / Common Vampire Bat (Desmodus rotundus) in flight, Mexico

Konrad Wothe / Honduran white tent bats (Ectophylla alba) sleeping under Heliconia leaf, Braulio Carillo National Park, Costa Rica

Konrad Wothe / Fruit eating bats (Artibeus watsonii) resting under Heliconia leaf, Braulio Carrillo National Park, Costa Rica

Barry Mansell / Hairy-legged Vampire Bat (Diphylla ecaudata) drinking blood from a chicken's foot, Mexico,

Shattil & Rozinski / Little brown bat {Myotis lucifugus} roosting, USA

Shattil & Rozinski / Little brown bat {Myotis lucifugus} close up of mouth showing teeth, USA

Shattil & Rozinski / Little brown bat {Myotis lucifugus} close up of hand and claws, USA

Shattil & Rozinski / Little brown bat {Myotis lucifugus} portrait, USA

John Cancalosi / Mexican free tailed bats (Tadaria brasilienses mexicana) mass emergence at dusk from cave entrance, Carlsbad Caverns NP, New Mexico, USA