Animal testicles hi-res stock photography and images - Alamy
my jumbo rat Nathan has THE BIGGEST BALLS. Also hes super sweet and adorable and has many other wonderful traits, but damn, if my balls were that size in proportion to my
Balls
Northern giant mouse lemur has the biggest testicles among primates | Daily Mail Online
Largest testicles of any species? That would be the bush cricket | Reproduction | The Guardian