Vampire Bat
Despite their fearsome reputation, vampire bats use surprisingly sophisticated echolocation. They emit low-frequency pulses between 20-50 kHz to navigate in darkness. Unlike most bats, they also use echolocation while walking or crawling toward prey. They combine sound navigation with heat sensors located in their nose to find blood-rich areas. This dual-system approach helps them locate sleeping mammals and birds. They can detect the subtle warmth differences in an animal’s skin where blood vessels run close to the surface.