John Edward Gray wrote nearly 500 papers, including many descriptions of species new to science. These had been presented to the Museum by collectors from around the world, and included all branches of zoology, although Gray usually left the descriptions of new birds to his younger brother and colleague George. Gray was also active in malacology, the study of molluscs. John Edward Gray was buried at St Mary's Church, Lewisham. Gray was one of the most prolific taxonomists in the history of zoology. He described more than 300 species and subspecies of reptiles, only surpassed by his successors at the British Museum, George
Primatology uninfluenced by human interference. There are three methodological approaches in primatology: field study, the more realistic approach, laboratory study, the more controlled approach, and semi-free ranging, where primate habitat and wild social structure is replicated in a captive setting. Field is done in natural environments, in which scientific observers watch primates in their natural habitat. Laboratory study is done in controlled lab settings. In lab settings, scientists are able to perform controlled experimentation on the learning capabilities and behavioral patterns of the animals. In semi-free ranging studies, scientists are able to watch how primates might act in the wild but