The entire evolutionary record on our planet, particularly the record contained in fossil endocasts… — Carl Sagan
The entire evolutionary record on our planet, particularly the record contained in fossil endocasts, illustrates a progressive tendency toward intelligence. There is nothing mysterious about this: smart organisms by and large survive better and leave more offspring than stupid ones.
p. 240Source: Wikiquote · CC BY-SA 4.0
More from this book
A mutation in a DNA molecule within a chromosome of a skin cell in my index finger has no influence on heredity. Fingers are not involved, at least directly, in the propagation of the species.
p. 27
There is a popular contention that half or more of the brain is unused. From an evolutionary point of view this would be quite extraordinary: why should it have evolved if it had no function? But actually the statement is made on very little evidence.
p. 31
Absence of evidence is not evidence of absence.
p. 7
