Following echoes to find the way

In echolocation, bats emit sound pulses and receive echoes returning from objects. This helps them perceive what is ahead and follow moving prey. Ricardo Rocha’s explanation for the Gulbenkian also reminds us that they are not blind: vision plays a part in their lives. Researchers use devices to capture sounds we often cannot hear. This is a general explanation, not a way to identify species from observed flight.

An ultrasound detector makes sounds beyond human hearing accessible. Morcegos.pt presents it as an observation tool: listening with equipment adds clues, but this story does not teach species identification from a single sound.