Search tips
Search criteria 


Logo of transbThe Royal Society PublishingPhilosophical Transactions BAboutBrowse By SubjectAlertsFree Trial

Figure 4.

An external file that holds a picture, illustration, etc.
Object name is rstb20090136f04.jpg

The timing of the five key transitions discussed in the text, based on archaeological and palaeontological evidence (table 2). (a) The first four transitions occurring on a time scale of millions of years; (b) the fifth transition on a time scale of thousands of years.

Images in this article

  • Figure 1.
  • Figure 2.
  • Figure 3.
  • Figure 4.
  • Figure 5.
Click on the image to see a larger version.