translation.en: Especially when chimpanzees, and other animals with large brains, are studied in captivity, modern technology is helping us to search for the upper levels of cognition in some of these non-human animals.
translation.zh: 特别是研究圈养的黑猩猩和其他 脑容量大的动物时， 现代技术有助于我们探索 除人类之外，拥有高级认知能力的动物。