Madagascar hissing cockroaches like these are often kept as pets. The insects are one of the few cockroach species that cannot fly, and most pet-owners keep their cockroaches in fish tanks or terrariums. Many areas require an exotic-pet license for Madagascar hissing cockroaches.

Photograph by Magnus Manske, courtesy Wikimedia. This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.

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