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Related Concept Videos

Synteny and Evolution02:31

Synteny and Evolution

John H. Renwick first coined the term “synteny” in 1971, which refers to the genes present on the same chromosomes, even if they are not genetically linked. The species with common ancestry tend to show conserved syntenic regions. Therefore, the concept of synteny is nowadays used to describe the evolutionary relationship between species.
Around 80 million years ago, the human and mice lineages diverged from the common ancestor. During the course of evolution, the ancestral chromosome underwent...
What is Evolutionary History?02:35

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Scientists record evolutionary history by analyzing fossil, morphological, and genetic data. The fossil record documents the history of life on Earth and provides evidence for evolution. However, both fossil and living organisms offer evidence that outlines Earth’s evolutionary history.
Evolutionary Psychology01:20

Evolutionary Psychology

Evolutionary psychology explores the origins of human behavior and mental processes by framing them within the context of natural selection, a theory famously propounded by Charles Darwin. This field asserts that many behaviors common across human societies — ranging from instinctive fear reactions to complex social interactions — arose as evolutionary adaptations. These adaptations enhanced the survival and reproductive success of our ancestors, thereby becoming embedded in the human psyche...
The Fossil Record02:56

The Fossil Record

The fossil record documents only a small fraction of all organisms that have ever inhabited Earth. Fossilization is a rare process, and most organisms never become fossils. Moreover, the fossil record only exhibits fossils that have been discovered. Nevertheless, sedimentary rock fossils of long-lived, abundant, hard-bodied organisms dominate the fossil record. These fossils offer valuable information, such as an organism's physical form, behavior, and age. Studying the fossil record helps...
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Gene Evolution - Fast or Slow?

The genomes of eukaryotes are punctuated by long stretches of sequence which do not code for proteins or RNAs. Although some of these regions do contain crucial regulatory sequences, the vast majority of this DNA serves no known function. Typically, these regions of the genome are the ones in which the fastest change, in evolutionary terms, is observed, because there is typically little to no selection pressure acting on these regions to preserve their sequences.
In contrast, regions which code...
Gene Evolution - Fast or Slow?02:05

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The genomes of eukaryotes are punctuated by long stretches of sequence which do not code for proteins or RNAs. Although some of these regions do contain crucial regulatory sequences, the vast majority of this DNA serves no known function. Typically, these regions of the genome are the ones in which the fastest change, in evolutionary terms, is observed, because there is typically little to no selection pressure acting on these regions to preserve their sequences.
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Updated: May 12, 2026

Reverse Dissection and DiceCT Reveal Otherwise Hidden Data in the Evolution of the Primate Face
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Reverse Dissection and DiceCT Reveal Otherwise Hidden Data in the Evolution of the Primate Face

Published on: January 7, 2019

Human evolution: turning back the clock.

Richard E Green1, Beth Shapiro

  • 1Department of Biomolecular Engineering, University of California, Santa Cruz, USA.

Current Biology : CB
|April 13, 2013
PubMed
Summary
This summary is machine-generated.

Human evolution timelines are debated, hinging on accurate DNA mutation rates. A new study supports previous estimates, reinstating the established human evolution timeline.

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Area of Science:

  • Evolutionary biology
  • Genetics
  • Molecular anthropology

Background:

  • Accurate human evolution timelines rely on precise DNA mutation rate estimations.
  • Recent studies proposed a lower mutation rate, suggesting a longer evolutionary timeline.
  • This challenges established models of human origins.

Purpose of the Study:

  • To re-evaluate the human mutation rate.
  • To determine the accurate timeline for human evolution.
  • To reconcile conflicting data on human evolutionary history.

Main Methods:

  • Analysis of DNA sequence comparisons across human populations.
  • Statistical modeling to estimate mutation rates.
  • Comparison of new findings with previous evolutionary timeline models.

Main Results:

  • The study provides evidence supporting a higher mutation rate than recently suggested.
  • This reinstates the previously accepted timeline for human evolution.
  • Discrepancies with prior lower-rate estimates are addressed.

Conclusions:

  • The established timeline for human evolution is supported by new mutation rate data.
  • Accurate mutation rate estimation remains critical for understanding human evolutionary history.
  • Further research may refine our understanding of human origins and population genetics.