Accidents Quote by Julian Huxley
“The proof given by Wright, that non-adaptive differentiation will occur in small populations owing to "drift," or the chance fixation of some new mutation or recombination, is one of the most important results of mathematical analysis applied to the facts of neo-mendelism. It gives accident as well as adaptation a place in evolution, and at one stroke explains many facts which puzzled earlier selectionists, notably the much greater degree of divergence shown by island than mainland forms, by forms in isolated lakes than in continuous river-systems.”
About This Quote
Genetic drift in small populations leads to non-adaptive changes, showing that chance, not just natural selection, shapes evolution and explains island diversity.
In simple terms: Random genetic changes affect evolution, especially in small groups.
Key Takeaway
Recognize chance in evolutionary outcomes.
Themes
evolution
genetics
drift
adaptation
diversity
Mood
analytical
educational
inquisitive
Type
scientific
academic
When to use this quote
- conservation biology
- species management
- educational curricula
- research projects
Key Concepts
population genetics
evolutionary theory
randomness
Questions to Reflect On
- How does drift influence species survival?
- What role does environment play alongside drift?
A Different Perspective
Focusing on drift may overlook selective pressures.
