Frozen and cut on Microtome at 1mm intervals.
 Ancestors
- Human biology database
 - Human body
 - Human
 - Australopithecine
 - Ape subclade
 - Ape
 - Simian subclade
 - Simian
 - Primate subclade
 - Primate
 - Euarchontoglires subclade
 - Euarchontoglires
 - Placentalia subclade
 - Placentalia
 - Theria subclade
 - Theria
 - Mammal subclade
 - Mammal
 - Synapsid subclade
 - Synapsid
 - Amniote subclade
 - Amniote
 - Tetrapod subclade
 - Tetrapod
 - Fish subclade
 - Fish
 - Vertebrate
 - Chordate subclade
 - Chordate
 - Animal subclade
 - Animal
 - Eukarya subclade
 - Eukaryote
 - Species
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Ciro Santilli
