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Description of rare animals (写生珍禽图), by Song dynasty painter Huang Quan (903–965)
Description of rare animals (写生珍禽图), by Song dynasty painter Huang Quan (903–965)
Title page of Systema Naturae, Leiden, 1735
Title page of Systema Naturae, Leiden, 1735
Evolution of the vertebrates at class level, width of spindles indicating number of families. Spindle diagrams are typical for evolutionary taxonomy.
Evolution of the vertebrates at class level, width of spindles indicating number of families. Spindle diagrams are typical for evolutionary taxonomy.
The same relationship, expressed as a cladogram typical for cladistics
The same relationship, expressed as a cladogram typical for cladistics
Biology
In 1842, Charles Darwin penned his first sketch of On the Origin of Species.
In 1842, Charles Darwin penned his first sketch of On the Origin of Species.
Tree of life by Haeckel
Tree of life by Haeckel