Ancestral

... and rather specific course, but I can speculate that the phylogeny of insect pollinators is important because understanding their evolution and ancestral species could give insight into the origin of relations that the pollinators share with plants. Some insects and flowers have co-evolved in ...

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... mutations might occur once or twice and then spread through the population by interbreeding - the mutations might have already been present in the ancestral population From my post above, I think it should be fairly clear that the third option is the most likely. However, even if it is incorrect, ...

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A clade is a branch of the evolutionary tree comprising all the organisms that have evolved from one same common ancestral population. This is a monophylletic group. Taxa and clades are not the same. Taxonomist make groups of organism (taxa) that share common traits. These traits ...

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... ancestor between humans and chimps was more recent). There are definitely many hominid fossils, giving us considerable information about our ancestral relationships - for example, http://en.wikipedia.org/wiki/Human_fossils, and http://www.talkorigins.org/faqs/homs/species.html - and ancient ...

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... mutations might occur once or twice and then spread through the population by interbreeding - the mutations might have already been present in the ancestral population From my post above, I think it should be fairly clear that the third option is the most likely. However, even if it is incorrect, ...

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