So, how widespread is this new biological mess?We know that probably at least 10 per cent of plant species were formed by some kind of hybridisation.

• 现在生物学家需要重新开始到这种观念，自然界里有许多的东西，并不全是纯净家族血统的产物，恰恰是交叉藕合、杂乱无章的物种。