Blood is the only food a vampire bat will ever eat, and that narrow diet comes at a steep cost: most individuals cannot go more than a couple of nights without a meal before their bodies begin to fail ...

While much of the world sleeps, vampire bats emerge from dark caves, mines, tree hollows, and abandoned buildings in Mexico ...

Blood-feeding animals have evolved highly specialized mechanisms to access and consume blood without immediately alerting their host. Using sharp mouthparts, anticoagulant saliva, and stealthy ...

Based on the graphic novel by Steve Niles, “30 Days of Night” presents an interesting premise. Barrow, Alaska, the northernmost town in the United States, descends into total darkness for one month ...