但是在它的区域内是野生和驯养的高度浓缩。
But packed within its borders is a highly concentrated mixture of things wild and domesticated.
40多年来，人们一直在研究野生和人工驯养的黑猩猩。
For over 40 years, people have been studying chimps both in the wild and in captivity.
更令人惊奇的是，一些未受驯养的野生动物似乎也能够理解数字和使用数字。
Even more strikingly, some wild animals appear to understand and use numerical facts without training.
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