An attempt to study the evolution of living organisms without reference to cytology would be as futile as an account of stellar evolution which ignored spectroscopy.
John B. S. HaldaneThe future will be no primrose path. It will have its own problems. Some will be the secular problems of the past, giant flowers of evil blossoming at last to their own destruction. Others will be wholly new.
John B. S. HaldaneThere are 400,000 species of beetles on this planet, but only 8,000 species of mammals.
John B. S. Haldane