The study found differing mechanisms between sexes. In males, only castration extends lifespan, particularly when conducted pre-puberty, likely by reducing testosterone-driven risky, aggressive ...

Blocking reproduction through contraception or sterilization increases lifespan in both male and female mammals across more ...

Extended lifespan: Blocking reproduction extends lifespan by approximately ten percent across many mammals, sometimes more. Reproductive block: Male longevity rises only with castration (testosterone ...

Changing environmental conditions may threaten marine mammal populations by making it harder to find prey, and a new study shows how small, gradual reductions in prey could have profound implications ...

Which group of mammals has the more 'primitive' reproductive strategy -- marsupials, with their short gestation periods, or humans and other placental mammals, which have long gestation periods? For ...

v. 1. Germ cells and fertilization.--v. 2. Embryonic and fetal development.--v. 3. Hormones in reproduction.--v. 4. Reproductive patterns.--v. 5. Artificial control ...

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While most of us know baby horses are adorable, the majority of people don’t realize the process involved in equine reproduction. Many unique and innovative factors are at play in the way horses breed ...

A microbiologist named João Pedro de Magalhães has proposed the idea that the reign of dinosaurs forced mammals to speed up their reproductive cycle, eliminating key longevity genes. de Magalhães ...

(CNN) — Bats have long been the odd ones out among mammals. They are the only creatures in this branch of the animal kingdom capable of powered flight. Now researchers say they have discovered another ...