Jeffrey’s Reviews > The Rise of Humans: Great Scientific Debates > Status Update
Jeffrey
is 21% done
Ch5 dietary hypothesis
Gorillas - poor diet
Chimpanzees - better diet
Hominids - robust Australopithecines (paranthropus) versus gracile Australopithecines, jaws/ teeth were similarly adapted to their diets
Calcium and strontium are found in teeth in different ratios depending on diet inc strontium in vegetarians, inc Ca in carnivores
— Sep 20, 2026 02:58PM
Gorillas - poor diet
Chimpanzees - better diet
Hominids - robust Australopithecines (paranthropus) versus gracile Australopithecines, jaws/ teeth were similarly adapted to their diets
Calcium and strontium are found in teeth in different ratios depending on diet inc strontium in vegetarians, inc Ca in carnivores
Like flag
Jeffrey’s Previous Updates
Jeffrey
is 8% done
Ch2
Australopithecus afarensis
Ancestor or not?
Debated by
Richard Leakey (son of louis and mary) - dont know for sure
Don Johanson - prob an ancestor
— Aug 22, 2026 11:03AM
Australopithecus afarensis
Ancestor or not?
Debated by
Richard Leakey (son of louis and mary) - dont know for sure
Don Johanson - prob an ancestor