猩猩 (xīngxing) means 'orangutan' or more broadly 'ape.' It is a reduplicated word commonly used to refer to great apes, especially orangutans. In everyday Chinese, it can appear in compound words like 大猩猩 (gorilla) or 黑猩猩 (chimpanzee).
动物园里新来了两只猩猩,孩子们特别兴奋。
dòngwùyuán lǐ xīn lái le liǎng zhī xīngxīng, háizimen tèbié xīngfèn.
The zoo got two new orangutans, and the children were very excited.
猩猩是非常聪明的动物,能学会使用工具。
xīngxīng shì fēicháng cōngmíng de dòngwù, néng xuéhuì shǐyòng gōngjù.
Orangutans are very intelligent animals that can learn to use tools.
那只猩猩正坐在树上吃水果呢。
nà zhī xīngxīng zhèng zuò zài shù shàng chī shuǐguǒ ne.
That orangutan is sitting in a tree eating fruit.