- Jan 7, 2002
- 12,755
- 3
- 0
They ranged from the chimpanzee, which is man's closest living relative, to the owl monkey, a relatively primitive creature analogous to an early stage of human evolution.
They found evidence that the make-up of the gene changed significantly between the species - and the higher up the evolutionary scale they went, the more changes they found.
The biggest difference was found between the human and chimpanzee forms of the gene - confirming that the recent phase of human evolution has been the most speedy and profound.
By contrast, when researchers looked at the make-up of the gene in more primitive animals such as cows, sheep, cats and dogs they found little evidence of significant changes between species.
This implies that the speed of change was much slower further down the evolutionary ladder.
Text
They found evidence that the make-up of the gene changed significantly between the species - and the higher up the evolutionary scale they went, the more changes they found.
The biggest difference was found between the human and chimpanzee forms of the gene - confirming that the recent phase of human evolution has been the most speedy and profound.
By contrast, when researchers looked at the make-up of the gene in more primitive animals such as cows, sheep, cats and dogs they found little evidence of significant changes between species.
This implies that the speed of change was much slower further down the evolutionary ladder.
Text