The scientists say that in the short term, studies based on the new genome may help explain why the pathogen has been so aggressive.

VOA: special.2009.10.20

Altruism" is the biologists' term meaning kindness,generosity, and evolutionary biologists have worked really hard to explain why animals might evolve to be kind.

利他主义是生物学术语,意思是善良，慷慨，进化生物学家努力去解释,为什么动物进化趋向善良。

耶鲁公开课 - 心理学导论课程节选

Altruism" is the biologists' term meaning kindness,generosity, and evolutionary biologists have worked really hard to explain why animals might evolve to be kind.

利他主义是生物学术语,意思是善良，慷慨，进化生物学家努力去解释,为什么动物进化趋向善良。

耶鲁公开课 - 心理学导论课程节选