A new article in Ecological and Evolutionary Physiology examines how the immune system and reproduction interact in female mammals, especially during pregnancy, from mating to birth. Lauren E.

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 ...

India, Sept. 21 -- Which animal has a pregnancy lasting 243 days? The answer may surprise many animal lovers. While some ...

Some female birds, reptiles and other animals can make a baby on their own. But for mammals like us, eggs and sperm need each other. Parthenogenesis could be the future for this California condor ...

Sperm capacitation represents the final maturation phase that mammalian spermatozoa undergo after ejaculation, during which they acquire the capacity to fertilise an oocyte. This multifaceted process ...

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 ...

TOKYO -- Sexual reproduction is essential for mammals to eliminate harmful genetic mutations that build up through cloning, a research team led by professor Teruhiko Wakayama of Yamanashi University ...

Hormonal contraception and permanent surgical sterilization increase life expectancy, a study across 117 mammals suggests. Blocking reproduction increases lifespan in both males and females of many ...

Early pregnancy in mammals encompasses a tightly regulated sequence of events beginning with fertilisation of the oocyte, formation and transport of the blastocyst, and its eventual implantation into ...

Why do lifespans vary across different species? A female elephant can live up to 80 years, but usually only has a few calves during her lifetime. A mouse, on the other hand, lives for a few years at ...