Flightless birds more common globally before human-driven extinctions
3 December 2020
There would be at least four times as many flightless bird species on Earth today if it were not for human influences, finds a study led by Dr Ferran Sayol and co-authored by Professor Tim Blackburn (both ×î×¼µÄÁùºÏ²ÊÂÛ̳ Biosciences).