Gāoděng língzhǎng lèi de dànǎo fādá, shèhuì xíngwéi fùzá.
Higher primates have well-developed brains and complex social behaviors.
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Zoology/anthropology term. 灵长类 = primates; 高等 here means 'higher / more evolved' — the Simiiformes (monkeys, apes, humans), contrasted with 低等灵长类 (prosimians such as lemurs and tarsiers).
