Remember that AC/DC song, "Big Balls?" Well, it may have just been written for a cricket.
Cricket Sets Testicle Size Record
The Tuberous bushcricket's testicles account for 14 percent of its body weight. To put that in perspective, the testicles of a man weighing 200 pounds (91 kilograms) with that ball-to-body ratio would weigh 28 pounds (12.7 kg). . . Read more at: Live Science