primate family tree primates family tree primate evolutionary tree
[primate family tree primate evolutionary tree]
primates evolutionary tree human evolution origins of mankind

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The Primate Family Tree or
Primate Evolutionary Tree

Existing primate species can be divided into six subgroups: lemurs, lorises, tarsiers, New World monkeys, Old World monkeys, and apes and humans.

As reported in an article in the well-respected scientific magazine "Nature" in April, 2002 the results of researches led by the Field Museum of Chicago have resulted in a revision of the primates evolutionary tree.
The origin of primates has been pushed back from 65 million years ago to 85 million years ago, before the dinosaurs became extinct.

Field Museum sponsored artists Illustration, by Nancy Klaud, of an earliest common ancestor According to Dr. Martin vice president of academic affairs at The Field Museum and co-author of the research, who has studied primate evolution from many different perspectives for the past 30 years, their 85-million-year-old earliest common ancestor probably looked like a primitive, small-brained version of today's dwarf lemur.

That animal would probably have been a nocturnal, tree-living creature weighing about 1-2 pounds, with grasping hands and feet, also used by the infant to cling to the mother's fur. It probably had large forward-facing eyes for stereovision and a shortened snout. It would have inhabited tropical/subtropical forests, feeding on a mixed diet composed mainly of fruit and insects. Like humans, it probably had a slow pace of breeding characterized by heavy investment in a relatively small number of offspring.

The illustration above left was prepared by Nancy Klaud to accompany the Field Museum's research findings.

graphical representation of the Primate Family tree showing a scientific view of the origins of mankind and the apes.
Credit: The Field Museum, D. Quednau.

The sciences hold that there were many naturally occuring changes in physique and behaviour - some of these proved beneficial in terms of survival - and were locally reinforced by such "successes-in-survival" allowing several branching divergences, based on these survival-favouring changes, to produce a primate evolutionary tree of related species.

The changes that allowed Humans to feature as part of a human / primate family tree, and which allowed Humanity to become established as we know it today, being very slowly accumulated due to various "survival advantages" that these changes conferred allowing their possessors to be more generally successful in the struggle for life but particularly so in the gaining of foodstuffs to nourish themselves, their families, and their friends.

artistic representation of human evolution.

At age-of-the-sage we are more truly interested in the origins of Human Psychology and Spirituality than in the origins of Human Physique.
The Science versus Religion Debate
Charles Darwin biography
Alfred Russel Wallace biography
Thomas Malthus
Essay on Population
Darwin quotes
his beliefs about God
Thomas Henry Huxley
Darwin's Bulldog

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