182756
It was hypothesized that B. melanocephalum and the Natal Midlands Dwarf Chameleon ( B. thamnobates ) may be phenotypically plastic populations of the same species , however juveniles of both species were raised under identical conditions and developed into what was phenotypic ally expected of their original populations , indicating that they are separate species .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
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