3 ms·

If it spreads so quickly and efficiently, how come it hasn't overwhelmed most ecosystems yet?

• pvaldes 8y ago
  In just 250 years has conquered most European countries, appears in all USA states, can be found in India, Australia, New Zealand, Mexico, Colombia and Argentina. Looks like a perfect example of world conquest to me.
  • deogeo 8y ago
    > In just 250 years And the tens of thousands of years (at least) the species has existed before that?
    • sly010 8y ago
      It was introduced to Europe in 1740s.
    • pvaldes 8y ago
      For the last tens of thousands of years was restricted to China, most probably Before this time, probably had a bigger distribution area. The genus has extinct species in Central Europe and America but a very similar species lived yet in China around 10 millions of years ago