extinction

Review | Extinctions: Living and Dying in the Margin of Error

September 7, 2021 by G.T. Dempsey

This book sets out, in some nine chapters, both the ‘turbulent’ journey of that one species living 3.7 billion years ago to the 8.7 million today and the human activity threatening that biodiversity.

Female (upper bird) and male (lower bird) Passenger Pigeons. Reproduced from the John J. Audubon Plate

Centennial of the Extinction of the Passenger Pigeon

August 29, 2014 by Caitlin Dempsey

September 1, 2014 marks the hundred year anniversary of the extinction of the Passenger Pigeon. Passenger pigeons were once the most abundant bird in North … Read more