In space, no one can hear you scream as you flee from space eels… but the space eel shriek is so ferocious it can pass through a vacuum. The sound is carried in its own soundwave medium emitted by the eel, which acts as an echolocation type system for space. Its faint nails-on-chalkboard sound penetrates even the most sound-proofed parts of spaceships millions of kilometers away and echos in their hulls.
If a space eel shrieks in a planetary atmosphere, the planet explosively decompresses.
