美国科学60秒-SSS 2015-06-09

（单词翻译）

 Chimpanzees.They are much like us, genetically¹ and atomically, and as it turns out, cocktail² logically. Because we finally have solid evidence that chims drink alcohol. So say researchers who observed wild chimpanzees throw back fermented⁴ tree sap. The findings are served up in Royal Society Journal Open Science. Some biologists think the reason we humans like adult beverages⁵ is because our primate⁶ ancestors were partial to super-ripe friuts, which are high in calories and often in ethanol. But there is one big problem with this so-called drunken monkey hypothesis. Apes had not really been seen downing alchohol in the wild, that is until now. The researchers who are studying chimps⁷ in bars of West Africa. In this region, people tap palm trees and allow the collected sap to ferment³ in small plastic containers which they cover with leaves to prevent contamination. It turns out, for chimps who hank a houge, the leaves are like the straw and banana deckery. The apes take the leaves, crumple⁸ them up, dip them in the sap and then suck them dry. The drinkers were mostly male, shockingly, accounting⁹ for thirty-four of the fifty-one balts of boozing observed. And they'd consume a couple of liters of the fermented brew¹⁰ each time they bellied¹¹ up to the bar, I mean, tree. Whether chimps are simply taking advantages of an easily-acquired calory-rich liquid, or they especially enjoy the sap's sweet flavor, or intoxicating¹² effect, is not known. But the question call for another round of research.