What are ultrasound sonar and echollocation?

Ultrasound sonar is a technology that uses sound waves to detect and locate objects underwater, commonly used in marine navigation and fishing. It emits sound pulses that bounce off objects and return to the source, allowing for measurements of distance and object shape. Echolocation, primarily used by certain animals like bats and dolphins, is a biological process where these creatures emit sound waves that echo off surrounding objects, helping them navigate and hunt in their environments. Both technologies rely on the principles of sound wave reflection to gather information about surroundings.