Fig. 6

The “Darwinian” view of the gradual evolution of species (left) compared with the new, “punctuated equilibria” concept of stasis and speciation (Steve Thurston, AMNH; Armistead Booker, Seminars on Science, AMNH)
The “Darwinian” view of the gradual evolution of species (left) compared with the new, “punctuated equilibria” concept of stasis and speciation (Steve Thurston, AMNH; Armistead Booker, Seminars on Science, AMNH)