Adopt-an-Animal: Madagascar Hissing Cockroach
Your Adopt-an-Animal donation will be used to support these hissing invertebrates and further the San Francisco Zoological Society’s mission to connect people to wildlife, inspire caring for nature, and advance conservation action.
The hissing cockroach is one of the largest species of cockroach, reaching 2–4 inches at maturity. It has become characterized by its hissing sound, large size, and appearance. In this insect, sound is produced by forcibly expelling air through a pair of modified abdominal spiracles. Spiracles are breathing pores which are part of the respiratory system of insects. Because the spiracles are involved in respiration, this method of sound production is more typical of the respiratory sound made by the vertebrates.