The latest stories from the Science & Environment section of the BBC News web site.
New evidence has been found for epic prehistoric voyages between the Americas and eastern Polynesia.
Horseshoe crab blood is used to help develop medicine, but some people want the practice stopped.
The WHO has acknowledged there is evidence that Covid-19 can be spread by airborne particles.
A BBC investigation found vast quantities of protected rosewood were being trafficked from The Gambia.
There are questions over whether the Joint Biosecurity Centre has the expertise needed for the job.
As the world battles the Covid-19 pandemic, more and more protective equipment is ending up in the sea.
Aligning polar satellites will enable the first ever reliable maps of Antarctic sea-ice thickness.
Dinosaurs are thought of as giant creatures, but new work adds to evidence they started out small.
The pipeline, which protesters fought against, is ordered to conduct a fresh environmental review.
A report says a rise in animal-to-human diseases will continue without urgent action.
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