Parasitic Wasp. When it's ready to lay eggs, the wasp finds itself a cockroach. It stings the roach such that the roach's front legs are briefly paralyzed so the wasp can continue without struggles. The wasp then delivers a very precise sting into the roaches brain such that it's escape reflex is disabled. Now the wasp leads the cockroach by it's antenna, and the cockroach calmly follows.

The wasp walks it back to it's burrow where the cockroach patiently waits while the wasp seals the burrows entrance with pebbles. Finally, the wasp lays it's egg on the cockroaches tummy. The egg hatches and the larva chews a hole inside the living cockroach, where it grows, living on the organs. Finally, it chews a hole in the roaches back and emerges to begin the cycle again.

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