After years of trial and error, scientists have finally done something incredible: They have successfully grown human stem cells in a pig embryo. Why would anyone do this? Turns out, many ...

A group led by scientists at the Salk Institute for Biological Studies has taken the first big step toward making this a reality: today (January 26) in Cell, they report having grown the first ...

This dynamic period of early development sees embryonic cells displaying remarkable ... including mouse, cow, pig, rabbit, and the non-human primate, rhesus macaque. Their findings were surprising ...

More than half of the mammalian genome consists of remnants of ancient viral DNA known as ‘transposable elements’ ─ sequences ...

Over half of our genomes consist of thousands of remnants of ancient viral DNA, known as transposable elements, which are widespread across the tree of life. Once dismissed as the "dark side" of the ...