Add Yahoo as a preferred source to see more of our stories on Google. histological image shows a cross section of a rat's brain, depicted in red, with a glowing green blob on the top right side; the ...

In an experiment reminiscent of "Frankenstein," scientists found that rat brain cells can fill in for lost neurons in mice, even allowing the host rodents to sniff out sweets. While splicing rat and ...

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.