“Soon you'll regret all that suntanning because your face will look like a testicle.”

“You'll probably feel a soft, rope-like cord at the top of the back part of each testicle.”

“They are able to take their entire interior surface with an alternating ovary and testicle and produce millions of gametes.”

“A tubular testis, which appears to be anastomosing, characterizes the primitive sarcopterygian and the coelacanth.”

“The testis skin from a young rhesus macaque monkey was implanted under the skin on the back of a mouse with a depleted immune system.”

“On physical examination, the patient was found to have right scrotal swelling encroaching on the epididymis and testis.”

“Residues of PCP have been found in human testes, kidney, prostate, liver, and adipose tissue.”

“All testes with mixed atrophy had dysgenetic Sertoli cells, although normal mature Sertoli cells were also found in 3 of these testes.”

“In the cuckoo, a polygamist who continues with the female but for a very short time, the testes are small.”

“If you are a man, do you regularly examine your testicles for lumps?”

“This virus causes swollen glands in the face and neck, and can also cause deafness, and swelling of testicles in boys, and ovaries in girls.”

“And there was a fascinating account of the castrati, the male singers who lost their testicles before puberty.”