In which Max explores the history of the Gaia hypothesis and wonders whether it needs to be “Darwinized”

In which Max re-examines a recent re-examination of living fossils, with the help of a new paper by Beckett Sterner

In which Max considers the problems involved in interpreting the enigmatic fossils of the Ediacaran Period, as well as some influential attempts to interpret them

In the second part of a three-part “Problematica,” Max examines why the development of punctuated equilibria did so little to upset Gould’s early adaptationist and progressivist ideas about evolution—at least at first

In the first part of a three-part installment of “Problematica,” Max examines what Stephen Jay Gould was up to on the eve of “Punctuated equilibria: an alternative to phyletic gradualism” (1972), and introduces an interpretive puzzle