Dr. Sherman Silber, a renowned pioneer in microsurgery and infertility, is considered one of the world’s leading authorities on IVF, mini-IVF,sperm retrieval , ICSI, vasectomy reversal, male infertility, tubal ligation reversal, egg and embryo freezing, ovary transplantation, and thereproductive biological clock. He performed the world’s first microsurgical vasectomy reversal, as well as the first testicle transplant, in the 70’s and now in the current century, the world’s first ovary transplant. He was the first to develop the TESE and MESA techniques for retrieving testicular and epididymal sperm in azoospermic men. He headed the clinical MIT team that first mapped and sequenced the Y chromosome in infertile men and discovered the now famous DAZ gene for male fertility. His research includes also the study of reproduction and fertility in zoo animals and endangered species. Most recently he has perfected the preservation of fertility for cancer patients with ovarian freezing and transplantation and thereby figured out how to extend the reproductive biological clock of women. He has helped pioneer minimal ovarian stimulation to reduce IVF Costs. He has even recently answered the age-old question of why the dinosaurs went extinct by extending his research on male infertility and the Y chromosome, discovering that the change in earth temperature 65,000,000 years ago led to the birth of a skewed male/female sex ratio.