PASCAL GOETGHELUCK / SCIENCE PHOTO LIBRARY PASCAL GOETGHELUCK / SCIENCE PHOTO LIBRARY
Fossil skull capacity measurement. Millet seeds being used by a researcher to measure the capacity of a fossil skull. This measurement is done to give a measure of cranial capacity (and hence brain size) for humans and other species from the human evolutionary tree. Cranial capacity can vary from 300 to 500 cubic centimetres (cc) for lower primates, to 450 to 700 cc among non-human hominin and hominid species, with humans having a cranial capacity of around 1000 to 1800 cc. This specimen is from the Philippine island of Marinduque. Photographed in 2010, at the National Museum of Natural History, Paris, France.
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