A new book explores the story of the chemicals that put the zing into life
Randi Hutter Epstein
W.W. Norton & Co., $26.95
The first scientific experiment on hormones took an approach that sounds unscientific: lopping off roosters’ testicles. It was 1848, and Dr. Arnold Berthold castrated two of his backyard roosters. The cocks’ red combs faded and shrank, and the birds stopped chasing hens.
Then things got really weird. The doctor castrated two more roosters and implanted a testicle from each into the other’s abdomen. As Randi Hutter Epstein writes in a new book, each rooster “had nothing between his drumsticks but a lone testicle in his gut — yet he turned back into a full-fledged hen-chaser, red comb and all.” It was the first glimpse that certain body parts