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How'd we get so choosy about friendships late in life? Ask the chimps（图）
choosy friendships late in life chimps
2020/10/30
When humans age, we tend to favor small circles of meaningful, already established friendships rather than seeking new ones. People are also more likely to lean toward positive relationships rather th...
Rival sperm and choosy eggs:FSU researcher finds that when sperm compete,eggs have a choice（图）
Rival sperm choosy eggs FSU researcher sperm compete eggs have a choice
2017/11/23
The delicately mannered dance between discerning eggs and vying sperm is more complicated than scientists once believed, and it may hold secrets about the evolution of new species.In a paper published...