Scientists have completed a brain cell transplant, combining lab-grown clumps of human brain cells with those of newborn rats. The experiment is disturbing, but there's a good reason behind the move.

Scientists transplanted human brain organoids into rats to repair injuries to their visual processing systems. When you purchase through links on our site, we may earn an affiliate commission. Here’s ...

In a proof-of-concept experiment, scientists demonstrated that you can create and fertilize human eggs in the lab using sperm, genes from skin cells, and the "shells" of existing egg cells. When you ...