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A Japanese zoo is putting on an exhibition of one of the world’s most hated insects.

AFP

A JAPANESE zoo is trying to do the impossible — improve the image of cockroaches, putting on an exhibition of one of the world’s most hated insects.

With a whopping — and disgusting — 4,000 species around the planet, the hardy creature can survive almost anywhere, but is most commonly encountered by city-dwellers in grubby corners of the kitchen, or roaming around the floor at night.

Staff at Shunanshi Tokuyama Zoo in Yamaguchi, western Japan, say the cockroach gets a bad press and actually performs a vital job.

“They have such a negative image,” a zoo spokeswoman told AFP.

“But they’re actually playing an important role in the food chain.”

Important, but not very pleasant-sounding: eating rotting carcasses and dead plants on forest floors.

One highlight of the exhibition will be a five-way race among cockroaches, where visitors can watch the worryingly speedy bugs whiz down a track.

If that’s not entertainment enough — hard to credit — the zoo is offering the chance to get your hands on a Madagascar Hissing Cockroach, which can grow as long as 7 centimetres.

No need to worry about this, though, assures the zoo — Madagascar Hissing Cockroaches can’t fly. But they can hiss.

The exhibition has around 200 creatures from a total of 15 species on display, and is already proving popular, the spokeswoman said, adding 70 to 80 per cent of visitors are stopping by.