Ethics is not routinely taught to science students except in medicine, and I think it should be.

Ethics is not routinely taught to science students except in medicine, and I think it should be.

Man is a competitive creature, and the seeds of conflict are built deep into our genes. We fought each other on the savannah and only survived against great odds by organising ourselves into groups which would have had a common purpose, giving morale and fortitude.

It is time my colleagues got real. All British universities doing worthwhile research use animals, and, instead of hiding, they should be boasting of their achievements.

You can now modify the genes of large animals, and the largest animal we are concerned with is the human.

Women of child-bearing age steadily run out of eggs by the continuous process of cell death. While reading a copy of the Guardian carefully from cover to cover, a normal woman will have lost on average two eggs - while, typically, a normal man will have made 70,000 new sperm.

I don't believe the fertilised egg can be equated with the sort of human life that you and I represent, or our children represent.