Knowledge Tree
Early humans
Facts (13)
Sources
Early Human Diets - California Academy of Sciences calacademy.org Jun 4, 2013 3 facts
claimThe specific driver behind the dietary transformation of early humans remains unresolved.
claimPotential C4/CAM-derived food sources for early humans include grass seeds, roots, sedge underground stems, termites, succulents, small game, and scavenged carcasses.
claimResearchers sampled fossils of giraffes, horses, and monkeys from the same environments as early human fossils and observed no significant change in carbon isotope values over time, suggesting that the dietary transformation observed in early humans was unique to them and did not apply to other mammals on the African savanna.
Psychedelics, Sociality, and Human Evolution frontiersin.org 2 facts
claimThe 'psychedelic instrumentalization' model proposes that early humans used psychedelics for four primary goals: managing psychological distress and health problems, enhancing social interaction, facilitating collective ritual and religious activities, and improving group decision-making.
referenceEarly humans learned by doing in an environment filled with informational resources, including indexical, iconic, and symbolic elements, without the need for explicit instruction or formalized institutions.
Paleolithic diet - Wikipedia en.wikipedia.org 1 fact
quoteMolecular biologist Marion Nestle argues that knowledge regarding the relative proportions of animal and plant foods in the diets of early humans is circumstantial, incomplete, and debatable, and that there is insufficient data to identify the composition of a genetically determined optimal diet.
Paleo's evolution and the modern story of stone-age eating - Rily rily.co Mar 20, 2024 1 fact
claimThe specific composition of the diet of early humans is a central point of contention between proponents and critics of the Paleo Diet.
[PDF] Video Transcript - Human Evolution – Early Human Diets naturalhistory.si.edu 1 fact
claimPaleoanthropologists study the activities, lifestyles, diets, biology, and behavior of early humans.
Changes in Diet Drove Physical Evolution in Early Humans home.dartmouth.edu Jul 31, 2025 1 fact
claimEarly humans developed a taste for grassy plants, specifically grains and starchy plant tissue found underground, as they migrated from African forests into grasslands to secure ready sources of energy.
To Follow the Real Early Human Diet, Eat Everything scientificamerican.com Jun 25, 2024 1 fact
claimIt is possible that early humans were targeting fat rather than meat when they first began butchering animals.
Study documents how change in diet drove early human evolution ucalgary.ca Aug 27, 2025 1 fact
claimEarly humans adopted a more carbohydrate-rich diet before their teeth were physically adapted to consume those foods, according to a study co-authored by University of Calgary anthropologist Vivek V. Venkataraman.
Unknown source 1 fact
claimEarly humans developed new behaviors, such as the use of primitive tools.
The Evolution of Diet - National Geographic nationalgeographic.com 1 fact
quoteIn the 1950s, Raymond Dart described early humans as "carnivorous creatures, that seized living quarries by violence, battered them to death … slaking their ravenous thirst with the hot blood of victims and greedily devouring livid writhing flesh."