How ancestors of living birds survived asteroid strike
Survival depended on whether ancient 'birds' lived on the forest floor or in the branches, say scientists.
Author Archives: BBC News - Science & Environment
How ancestors of living birds survived asteroid strike
Survival depended on whether ancient 'birds' lived on the forest floor or in the branches, say scientists.
Farne Island puffin population drop sparks concern
Initial findings in the National Trust's five-yearly survey suggest an overall decline of 12%.