A surprising new study has found that blocking reproduction in some mammals may increase their life expectancy by an average ...

A large-scale analysis of 117 mammal species found that preventing reproduction is associated with longer lifespans, suggesting a strong link between reproductive activity and life expectancy. Why do ...

A large international study reveals that mammals tend to live longer when reproduction is suppressed. On average, lifespan ...

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 ...

BEIJING — The idea of same-sex biological reproduction in mammals has long been thought impossible, like trying to build a ...

The energy invested in animal reproduction is as much as 10 times greater than previously estimated when the metabolic load of bearing and caring for offspring is accounted for, according to a new ...