Charlz Darvinning 1868-yil yanvarida nashr etilgan “The Variation of Animals and Plants Under Domestication, Vol. I.” asari ikki jildlik ishdir. Ushbu keng qamrovli tadqiqot Darvinning ko‘p yillik chatishtirish tajribalari va boshqa tabiatshunoslar bilan yozishmalariga asoslangan holda, xonakilashtirilgan hayvonlar va o‘simliklar haqidagi batafsil kuzatuvlarni taqdim etadi. Asarda, shuningdek, u pangenez deb atagan, irsiyat haqidagi bahsli nazariya ham ilgari suriladi. “Turlarning kelib chiqishi haqida” asaridan keyingi to‘rt yil davomida yozilgan bu kitob Darvinning evolyutsiya haqidagi xulosalarini tasdiqlovchi batafsil dalillar va faktlarni taqdim etishga urinishini ifodalaydi, garchi u yozish jarayonini nihoyatda mashaqqatli deb bilgan bo‘lsa-da.
Ushbu kitob haqidagi Vikipediya sahifasi: en.wikipedia.org/wiki/The_Variation_of_Animals_and_Plants_Under_Domestication
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