The BBC reports on research, published in BMC Biology, pointing to the possibility that there may be at least six species of giraffe in Africa. Quoting: "'Using molecular techniques we found that giraffes can be classified into six groups that are reproductively isolated and not interbreeding,' David Brown, the lead author of the study and a geneticist at... UCLA told BBC News. 'The results were a surprise because although the giraffes look different, if you put them in zoos, they breed freely.'"
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