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.

Mouse embryos can make it to an early stage of development in space. In an experiment conducted in 2021, a few hundred frozen two-cell embryos from mice thawed and grew over four days on the ...

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 ...

A remarkable new discovery is shedding light on one of the greatest survival stories in Earth's history, and answering a decades-old scientific mystery. Lystrosaurus, a hardy, plant-eating mammal ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...