So many Phoenician settlement sites were geographically close to non-Phoenician sites, making it easier to distinguish differences in genetic patterns.
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Understanding international migration has become more important in recent years because fertility worldwide has dropped…That means the relative importance of migration as a factor in population change is accentuated, particularly for the countries that are the big receivers.
We can also see that just before humans left Africa, about 70 000 years ago, mankind was brought to the brink of extinction when Mount Toba, in Sumatra, erupted ... It was the most powerful volcanic eruption for two million years and dropped thick ash and killed vegetation across the globe. Our research now shows Homo sapiens numbers dropped alarmingly at this time and we only just hung on as a species.