
A click that comes home
Sound and echo
Can you hear a shape?
Generated interpretation
First look
Some animals speak into the dark and listen to the world answer.
Look closer
Bats measure distance in the time of an echo. Whales may hear across basins. Even a forest is loud with useful bounce if you are built for it.
Keep looking
Noise we make can erase this clue. A sense that depends on quiet is as fragile as a sense that depends on darkness.
Where else
Bats, Toothed whales, Some birds of caves, Oilbirds.
Stories that use this
A question to carry outside
What does your street sound like if you stop naming the cars?