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A semi-redundant ping, on a topic from very early on in GGG history. Last one for the night, perhaps for the week. :')

Evolution in Your Face
by Patrick Huyghe
Omni
Lake Victoria, Africa's largest lake, is home to more than 300 species of cichlids. These fish, which are popular in aquariums, are deep-bodied and have one nostril, rather than the usual two, on each side of the head. Seismic profiles and cores of the lake taken by a team headed by Thomas C. Johnson of the University of Minnesota, reveal that the lake dried up completely about 12,400 years ago. This means that the rate of speciation of cichlid fishes has been extremely rapid: something on average of one new species every 40 years!

Interesting that Lake Victoria ceased to be, then came back, and all so recently.

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I submit that it is not only unlikely the lake dried up "completely" but that adequate pools survived to allow the continuation of enought species to repopulate the lake once the dry spell was past.

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Just updating the GGG info, not sending a general distribution. Evolution in Your Face by Patrick Huyghe Omni Lake Victoria, Africa's largest lake, is home to more than 300 species of cichlids. These fish, which are popular in aquariums, are deep-bodied and have one nostril, rather than the usual two, on each side of the head. Seismic profiles and cores of the lake taken by a team headed by Thomas C. Johnson of the University of Minnesota, reveal that the lake dried up completely about 12,400 years ago. This means that the rate of speciation of cichlid fishes has been extremely rapid: something on average of one new species every 40 years! 12,400 years ago? Hydrologic cycle came to a screeching whoa for some reason, hmm, what could it have been? To all -- please ping me to other topics which are appropriate for the GGG list.