Scientist Richard Dawkins has become embroiled in another Twitter row, claiming it would be "immoral" to carry on with a pregnancy if the mother knew the foetus had Down's Syndrome.
The British author made the comment in response to another site user who said they would be faced with "a real ethical dilemma" if they became pregnant with a Down's Syndrome baby.
Professor Dawkins tweeted:
He faced a backlash for his comment, with one mother, who has a child with the genetic condition, saying:
Prof Dawkins later defended his view, saying he would not apologise:
The Down's Syndrome Association (DSA) issued a response to Prof Dawkin's initial comment.
Previously Prof Dawkins caused controversy on Twitter when he described some rapes as "worse" than others.