Two pre-prints, one from Canada the other from Hong Kong and China, provide convincing evidence that SARS-Cov-2 infects and damages male reproductive organs in monkeys and hamsters. The work helps to ...

Older male rhesus monkeys sire fewer offspring, even though they appear to be mating as much as younger monkeys with similarly high social status. Sperm quality or quantity, or the survival of infants ...

A contraceptive gel has provided long-term and reliable contraception in male rhesus monkeys, according to research published in the open access journal Basic and Clinical Andrology. The product, ...

Infertility is a worldwide clinical problem for human health that affects 8 to 12 percent of couples. A new study from Washington University in St. Louis has implications for understanding some ...