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

When mammals have offspring, both in the wild and in captivity, new life is celebrated. This is especially true for species ...

A large international study reveals that mammals tend to live longer when reproduction is suppressed. On average, lifespan increases by about 10 percent, though the reasons differ for males and ...

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

A team of stem cell scientists successfully spawned mice from two male parents that reached adulthood, a significant step, but they still have to figure out the mechanics of the gene modification. In ...

A team of stem cell scientists have successfully used embryonic stem cell engineering to create a bi-paternal mouse -- a mouse with two male parents -- that lived until adulthood. Their results ...

Maddy has a degree in biochemistry from the University of York and specializes in reporting on health, medicine, and genetics. Maddy has a degree in biochemistry from the University of York and ...

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 ...