Piers did a radiation experiment with a cockroach. Why do scientists think this kind of thing is a good idea?
But apparently the roach was able to withstand the radiation.
So Piers did some research.

March of the Roaches
Get a sample of Gromphadorhina portentosa, aka, a Madagascar Hissing Cockroach, give it a circuit board for a saddle, then wire up the antennas. Using a joystick, wirelessly deliver pulses on the order of a few hundred millivolts....the roaches could be marched into places where no other animal or robot can go, such as search-and-rescue missions through the rubble after an earthquake, or data-gathering operations in a radiation-contaminated area.