20K views · 53 reactions | What does a Hissing Cockroach Sound like?! Come hear them for yourself this weekend for HOWL-O-WEEN! Their hissing is not a vocal sound, but actually comes from their Spiracles which are holes located up and down the sides of their bodies. These spiracles are not only how they breathe, but are also used to expel air when they are threatened like letting air out of a balloon! | Wildlife Images Rehabilitation & Education Center | Facebook

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