Wallace is still recognized as a pioneer in figuring out how species came to be where they are.

但仍被公认为是厘清物种如何来到现在栖地先驱者。

Unlike males, females don't travel far from their mother's home range, a major limiting factor in the animal's expansion.

美洲狮与公美洲狮不同，它们不会远离栖地，这也是这种动物扩张领域主要限制因素。