进化生物学家对人类为什么会变老及死亡仍存在分歧。
The question of why we grow old and die still divides evolutionary biologists.
生物学家们随后对巨蟒进食后血液中激增的特有脂类进行了鉴定。
The biologists then identified three specific lipids in python blood that increase after a meal.
但是生物学家开始对人类形成了普遍比较乐观的看法。
But biologists are beginning to form a generally sunnier view of humankind.
你是对的，你是个很勇猛的人，是我认识的最凶悍的古生物学家。
You're right, you are a tough guy. You're the toughest paleontologist I know.
你是对的，你是个很勇猛的人，是我认识的最凶悍的古生物学家。
You're right, you are a tough guy. You're the toughest paleontologist I know.
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