In one of the most controversial scientific projects ever conceived, a group of university researchers in California's Silicon Valley is preparing to create a mouse whose brain will be composed entirely of human cells. Researchers at Stanford University have already succeeded in breeding mice with brains that are one per cent human cells. In the next stage they plan to use stem cells from aborted foetuses to create an animal whose brain cells are 100 per cent human.
Latest
Latest News
Each news summary is created according to strict standards. Here's how we do it.
Each summary is created using a consistent editorial procedure. The target length is approximately 16 lines of 11-point Arial text in a 650-pixel-wide column. Up to 25% of a summary may be set in bold to emphasize the most important ideas. Summaries are composed of verbatim excerpts presented in the same sequence as they appear in the original news source, with very minor editorial additions. Where material has been omitted between excerpts, the omission is indicated with ellipses (...). Any words added by an editor for clarity or context appear in [brackets]. Our original news editor was Fred Burks. Tod Fletcher edited most summaries from 2007 through 2014, and Mark Bailey has served as news editor since 2014.