- BBC Science/Nature
- 20/4/2 20:15
Two million years ago, Africa was home to three human-like species, new discoveries reveal.
Two million years ago, Africa was home to three human-like species, new discoveries reveal.
The figure is the equivalent of 18.5 tonnes of material per person and that has increased.
Experts are set to assess the value of face masks in helping slow the spread of coronavirus.