Research measuring if there is a difference in temperature between the left and right testicles is one of the winners of this year’s spoof Nobel prizes.

Fertility experts Roger Mieusset and Bourras Bengoudifa measured the temperature of French postmen’s testicles, both naked and clothed.

They found the left one is warmer, but only when a man has his clothes on.

The Ig Nobel prizes were announced at a ceremony at Harvard University.

In their research “Thermal Asymmetry of the Human Scrotum” published in the journal Human Reproduction, the researchers explained their experiment involved measuring scrotal temperatures with probes every two minutes.

They asked 11 postal workers to stand for 90 minutes while they measured the temperature of their scrotums.

In another experiment, they measured the temperatures of

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