Tyger, tyger, burning bright

Ginger cats and their long-suffering owners around the world can rejoice – the genetic basis of their distinctive coat colour has finally been worked out, more than 110 years after it was first proposed.

The moral maze

The development of scientific techniques can outpace the legal and ethical boundaries society sets to control them. Where should the line be drawn between the common good and personal rights?

What we need to know about online genetic testing

They claim to be able to discover your ethnic background, help find your soulmate and even find the right diet; but what can online DNA tests actually deliver?