First humans out of Africa 'shrank to just 1,000' before rebounding rapidly

The number of descendants of the first humans to leave Africa shrank to little more than 1,000 before expanding rapidly, a study has revealed.

Scientists discovered the population of the ancestors of modern Asian and European people dwindled to just 1,200 who were 'actively reproducing'.

They also found that African populations crashed to around 5,700 people....