In Darwinian theory the engine of evolution is differential reproduction of different genetic stocks.
Buss: From an evolutionary perspective, sex is close to the engine of the most important evolutionary process — differential reproduction.
The most straightforward way to study the function of a behaviour is to see how natural selection operates on it under current conditions by studying differential reproduction.
All of these differences can be incorporated under the term differential reproduction because all result in natural selection to the extent that they affect the number of progeny an organism leaves.
An inevitable consequence of variation, inheritance, and differential reproduction is that, over time, the frequency of traits that render individuals better able to survive and reproduce in their present environment increases.
There was a differential reproduction.
They are: variation; heredity; and differential reproduction.
The basic mechanism is differential reproduction.
And so natural selection does require differential reproduction.
"All three work as a result of differential reproduction of the components of populations" (this can mean organisms, families, or even differential reproduction of gametes) (p. 10).
Accordingly, the evolution of complex adaptations, fundamental rearrangements of development, requires differential reproduction.
