1. Introducing “Classics in Biological Theory”

   • Stuart A. Newman

   Editorial 30 September 2019 Pages: 213 - 213

2. How Did Language Evolve? Some Reflections on the Language Parasite Debate

   • Tzu-wei Hung

   Perspective 10 April 2019 Pages: 214 - 223

   

3. A History of Autocatalytic Sets

   • Wim Hordijk

   Historical Essay 08 October 2019 Pages: 224 - 246

   

4. Revisiting Clarence King’s "Catastrophism and Evolution" (1877)

   • Niles Eldredge

   Classics in Biological Theory 30 September 2019 Pages: 247 - 253

   

5. Evolution is About Populations, But Its Causes are About Individuals

   • Pierrick Bourrat

   Original Article 12 October 2019 Pages: 254 - 266

   

6. Reciprocal Causation and the Extended Evolutionary Synthesis

   • Andrew Buskell

   Original Article Open access 05 September 2019 Pages: 267 - 279

7. A New, New Definition of Evolution by Natural Selection

   • Marion Blute

   Postscript 13 September 2019 Pages: 280 - 281

8. Referees for Volume 14 (Issues 1–4), 2019

   Acknowledgment 06 November 2019 Pages: 282 - 282