Oxytocin, a hormone linked to bonding behaviors, might also help mice modulate their pregnancies. Someday, this line of ...

The scientific breakthrough, announced on this day in 1997, proved that geneticists could clone an adult mammal, giving rise to a new era of ethical debate and experimentation ...

The mice were created by Colossal Biosciences, which edits DNA for species conservation, and has been working to bring back ...

Many animal embryos are able to undergo diapause, a period of arrested development, before implanting in the uterus, but though only 2% of mammals were known to have this ability, reported Nature. Now ...

Human embryos briefly exhibit traits like tails and gill-like structures, revealing our evolutionary history and deep ...

In May 2008 a cross-party attempt to ban hybrid human animal embryos was defeated on a free vote in the House of Commons, by 336 to 176. MPs had been debating the Human Fertilisation and ...

we were able to create an embryo in the lab for the first time," Gambini said, according to NBC News. Australia has the highest mammal extinction rate in the world, with more than 2,200 species ...

They have successfully grown human stem cells in a pig embryo. Why would anyone do this? Turns out, many scientists have been working on growing the organs of one animal inside of a different type ...

Andres Gambini, who led the research into the kangaroo embryo, said the technique could be applied to other animals under the threat of extinction. “Our ultimate goal is to support the ...

Placenta is not unique to mammals. Certain fish and reptiles have placenta-like connections allowing diffusion of materials between vascularized oviduct and embryo. Mammalian placenta is much more ...

If a human–animal cybrid embryo were genotyped based solely on its mtDNA content, then genetically it would be deemed animal, especially if it were homoplasmic with only recipient oocyte mtDNA.