Kanye West suggests African-American slavery was 'a choice'

US rapper Kanye West has said the enslavement of African Americans over centuries may have been a "choice".
"When you hear about slavery for 400 years ... for 400 years? That sounds like a choice," he said during an appearance on entertainment site TMZ.
"We're mentally imprisoned," the star added. He recently made headlines for his support for President Trump.
Black people were forcibly brought from Africa to the US during the 17th, 18th and 19th centuries and sold as slaves.
West later tweeted that his comments on Tuesday had been misinterpreted and that he "brought up the 400 years point because we can't be mentally imprisoned for another 400 years".

Artificial ovary fertility treatment developed by scientists

Scientists have taken early steps towards developing an artificial ovary that could lead to improved fertility preservation treatments. ...