What is Sibling species?
'''Sibling species''' are [[species]] which look alike, but cannot breed with each other.<ref name=Mark>Ridley M. 1996. ''Evolution''. 2nd ed, Blackwell Wiley. p404</ref><ref name=Doug>Futuyma D.J. 2005. ''Evolution''. Sinauer. p356</ref><ref name=Dict>Lincoln R.J; G.A. Boxshall and P.F. Clark 1982. ''A dictionary of ecology, evolution and systematics''. Cambridge University Press. p227 {{ISBN|0-521-23957-5}}</ref> The classic case is ''[[Drosophila pseudoobscura]]'' and ''[[Drosophila persimilis|D. persimilis]]''. They are almost identical, but if flies from one species are put with flies from the other species, they do not interbreed. Another example was the European [[mosquito]] known as ''[[Anopheles]] maculipennis''. This turned out to be a cluster of six different species, some of which transmit [[malaria]], and some do not.<ref name=Doug/> == References == {{Reflist}} {{biology-stub}} [[Category:Evolutionary biology]]