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- Fertilisation of Orchids
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- Gene
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- Reductionism
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- Springer Science+Business Media
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- Survival of the fittest
- Susan Oyama
- TalkOrigins Archive
- Teleological argument
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- The Autobiography of Charles Darwin
- The Descent of Man, and Selection in Relation to Sex
- The Different Forms of Flowers on Plants of the Same Species
- The Effects of Cross and Self Fertilisation in the Vegetable Kingdom
- The Expression of the Emotions in Man and Animals
- The Formation of Vegetable Mould Through the Action of Worms
- The Life and Letters of Charles Darwin
- The New York Times
- The Power of Movement in Plants
- The Structure and Distribution of Coral Reefs
- The Variation of Animals and Plants Under Domestication
- The Voyage of the Beagle
- The eclipse of Darwinism
- Theistic evolution
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- Thomas Henry Huxley
- Tim Lewens
- Timeline of biology and organic chemistry
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- Transmutation of species
- Tree of life (biology)
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- Vestiges of the Natural History of Creation
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- Woodstock, Oxfordshire
- Zoology of the Voyage of H.M.S. Beagle