How blood-drinking vampire bats find their next meal
Scientists have figured out just how blood-drinking vampire bats seek out their next meal.
They realised the bat's nose is covered with heat detectors which guide it to hotspots of warm blood - usually on a sleeping cow, goat or bird.
Then the bat uses its razor-sharp teeth to cut into the animal - without waking it up - to get to its dinner of blood.
The bat's special spit prevents the cut from closing up - the blood keeps flowing until the bat's had enough!