Bats
the answers is....... well noboby really knows the duck,by the way,has an echo
Bats use echo location, they track down sounds of prey by their sound waves.
becoz they need to be heard
Animals use their sounds to scare off predators or talk to one another.
Onomatopoeia.
they use it to find food/communicate with each other
Echo
Reverberations.
list two examples of how animals use sounds that people cant hear.
It is because their voice boxes are that way. Are voice boxes make certain sounds, and their voice box makes those types of sounds. Also, their shape could echo and turn the sound into the audible sound you hear.
Echolocation is the ability certain animals have to use sounds to navigate. They make sound and by hearing where it "bounces" from (hence the "echo") they are able to tell where something is located.
no