Actions Quotes Logo

Human-evolution Quotes

The entire evolutionary record on our planet, particularly the record contained in fossil endocasts,...

Show More

It may be that there are kernels of truth in a few of these doctrines, but their widespread acceptan...

Show More
Picture of Carl Sagan
Carl SaganDragons of Eden: Speculations on the Evolution of Human Intelligence

Evolution is adventitious and not foresighted. Only through the deaths of an immense number of sligh...

Show More
Picture of Carl Sagan
Carl SaganDragons of Eden: Speculations on the Evolution of Human Intelligence

Somewhere in the steaming jungles of the Carboniferous Period there emerged an organism that for the...

Show More
Picture of Carl Sagan
Carl SaganDragons of Eden: Speculations on the Evolution of Human Intelligence

a typical chromosomal DNA molecule in a human being is composed of about five billion pairs of nucle...

Show More
Picture of Carl Sagan
Carl SaganDragons of Eden: Speculations on the Evolution of Human Intelligence

What functions do dreams serve today? One view, published in a reputable scientific paper, holds tha...

Show More
Picture of Carl Sagan
Carl SaganDragons of Eden: Speculations on the Evolution of Human Intelligence

This sort of information gathering is precisely what we call play. And the important function of pla...

Show More
Picture of Carl Sagan
Carl SaganDragons of Eden: Speculations on the Evolution of Human Intelligence

with rare exceptions (chiefly the social insects), mammals and birds are the only organisms to devot...

Show More
Picture of Carl Sagan
Carl SaganDragons of Eden: Speculations on the Evolution of Human Intelligence

It is precisely our plasticity, our long childhood, that prevents a slavish adherence to genetically...

Show More
Picture of Carl Sagan
Carl SaganDragons of Eden: Speculations on the Evolution of Human Intelligence

Those mothers with hereditary large pelvises were able to bear large-brained babies who because of t...

Show More
Picture of Carl Sagan
Carl SaganDragons of Eden: Speculations on the Evolution of Human Intelligence

It is interesting that it is not the getting of any sort of knowledge that God has forbidden, but, s...

Show More
Picture of Carl Sagan
Carl SaganDragons of Eden: Speculations on the Evolution of Human Intelligence

When all is said and done, the invention of writing must be reckoned not only as a brilliant innovat...

Show More
Picture of Carl Sagan
Carl SaganDragons of Eden: Speculations on the Evolution of Human Intelligence

And despite the insignificance of the instant we have so far occupied in cosmic time, it is clear th...

Show More
Picture of Carl Sagan
Carl SaganDragons of Eden: Speculations on the Evolution of Human Intelligence

The time scale for evolutionary or genetic change is very long. A characteristic period for the emer...

Show More
Picture of Carl Sagan
Carl SaganDragons of Eden: Speculations on the Evolution of Human Intelligence

It is very difficult to evolve by altering the deep fabric of life; any change there is likely to be...

Show More
Picture of Carl Sagan
Carl SaganDragons of Eden: Speculations on the Evolution of Human Intelligence

The time scale for evolutionary or genetic change is very long. A characteristic period for the emer...

Show More
Picture of Carl Sagan
Carl SaganDragons of Eden: Speculations on the Evolution of Human Intelligence

Dartmouth College employs computer learning techniques in a very broad array of courses. For example...

Show More
Picture of Carl Sagan
Carl SaganDragons of Eden: Speculations on the Evolution of Human Intelligence

In addition, human beings have, in the most recent few tenths of a percent of our existence, invente...

Show More
Picture of Carl Sagan
Carl SaganDragons of Eden: Speculations on the Evolution of Human Intelligence

Washburn has reported that infant baboons and other young primates appear to be born with only three...

Show More
Picture of Carl Sagan
Carl SaganDragons of Eden: Speculations on the Evolution of Human Intelligence

MacLean has shown that the R-complex plays an important role in aggressive behavior, territoriality,...

Show More
Picture of Carl Sagan
Carl SaganDragons of Eden: Speculations on the Evolution of Human Intelligence

In the distant future I see open fields for far more important researches. Psychology will be based ...

Show More

I am perhaps more proud of having helped to redeem the character of the cave-man than of any other s...

Show More

No existing form of anthropoid ape is even remotely related to the stock which has given rise to man...

Show More

Quite recently the human descent theory has been stigmatized as the 'gorilla theory of human ancestr...

Show More

Nature's stern discipline enjoins mutual help at least as often as warfare. The fittest may also be ...

Show More
Picture of Theodosius Dobzhansky
Theodosius DobzhanskyMankind Evolving: The Evolution of the Human Species

When one contemplates the streak of insanity running through human history, it appears highly probab...

Show More