There is a clear correlation between the size of the testicles of male primates and the proneness to infidelity of females. Learn more about sex, sperm and infidelity at the anniversary exhibition Sexus.
A Danish fisherman made an unusual find in his nets recently when he discovered a pacu, a sharp-toothed cousin of the South American piranha with a reported penchant for testicles.
Surgical castration of cats, dogs leads to increased tendency to postoperative coagulation, inflammatory changes
Dogs and cats that are sterilised or castrated develop a stress response: inflammatory changes and an increased tendency to coagulation after the operation.
(PhysOrg.com) -- Researchers at the University of Derby and colleagues at the University of Cambridge believe they have found which species has the largest testicles in relation to body weight on the planet and why!