Baby alarm
Lucy Atkins on the new device that will tell you exactly when you are going to give birth.
Animal instinct
Why do chimps chew on leaves that they clearly find revolting? And why do elephants risk death to extract rocks from a mountain cave in Kenya? Perhaps they know something we don't about staying healthy, says Jerome Burne.
The price of progress
Tam Dalyell MP defends the rights of scientistis experimenting on animals
Animal testing is never acceptable
Geoffrey Thomas, from the Doctor Hadwen Trust, argues against vivisection
A pox on vaccines
Parents who refuse to have children immunised are regarded as dangerous cranks - in defiance of the facts.
To the last breath
Stephen Forber was the man who would not say die. When his beloved daughter Rachel fell victim to CJD, he scoured the internet for help and flew her to America to try an experimental treatment. For a while she even seemed to stage a miraculous recovery, but then the drugs failed and four weeks later she was dead. He tells Emma Brockes why he's still fighting.