How a Cockroach can survive without a head

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How Cockroach can survive without head ?

Cockroaches are insects belonging to the order Blattodea (Blattaria). About 30 cockroach species out of 4,600 are associated with human habitats. Some species are well-known pests

Most species of cockroach are about the size of a thumbnail, but several species are notably larger. The world's heaviest cockroach is the Australian giant burrowing cockroach Macropanesthia rhinoceros, which can reach 8 centimetres (3 in) in length and weigh up to 35 grams (1.2 oz). Comparable in size is the Central American giant cockroach Blaberus giganteus. The longest cockroach species is Megaloblatta longipennis, which can reach 97 mm (3+7⁄8 in) in length and 45 mm (1+3⁄4 in) across. A Central and South American species, Megaloblatta blaberoides, has the largest wingspan of up to 185 mm (7+1⁄4 in). At the other end of the size scale, Attaphila cockroaches that live with leaf-cutter ants include some of the world's smallest species, growing to about 3.5 mm in length.

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