What do hermit crabs sound like?

Answer 1

Most of the time they actually use behavioral language

Answer 2

Kind of, if you whisper they can't sense you, they have an extreme ability to pick up vibrations (your voice makes vibrations when you talk).

Answer 3

While it is believed that they do hear in a limited capacity they are much more sensitive to vibration and movement to protect against predators.

Answer 4

Yes!