Organic Evolution As the Result of the Inheritance of Acquired Characters Accord
Organic Evolution As the Result of the Inheritance of Acquired Characters Accord
Gustave Heinrich Theodor Eimer
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This appears to me probable, on account of the important correlative connections of the sexual organs. I shall subsequently have to speak further, in reference to bees, of the power of correlation, which shows itself especially in the modification of the sexual organs. What is there said will apply to the case of ants, which is not completely disposed of here. The absence of hair in the larger marine mammals is attributed to the cessation of natural selection : " The hairy covering is no longer... necessary in the water the layer of fat supplies its place. " Here again I cannot banish the idea that physiological causes are also concerned in this alteration. It is certainly striking that no animal which develops and always lives in the open water possesses a horny epidermis, and hairs are horny structures of the epidermis. Whales, to HERMIT-CRABS 213 take these as an example, of course develop in the body of the mother, and the embryos possess an inherited light covering of hair, which is no longer present in the adults.
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