Rat
Media playback is unsupported on your device
Video

Calls for tighter rules on animal tests

A group of scientists is calling for greater controls on research which mixes human and animal DNA.

The Academy of Medical Sciences says a national body should be set up to provide advice on such experiments and warned against research which involves introducing large numbers of human brain cells into the brains of primates.

Fergus Walsh reports.

  • 22 Jul 2011
  • From the section Health