New Spit Answers Raise More Spit Questions
Sierra Club,
Saliva is an old technology. It would be perfectly reasonable to assume that, like hearts or spines, it’s divergently evolved—an…
Saliva is an old technology. It would be perfectly reasonable to assume that, like hearts or spines, it’s divergently evolved—an…
到底谁是人类的祖先?曾经有很长的一段时间,科学家认为生活在距今12万到3万年前的尼安德特人是现代欧洲人的祖先。 但是,一门叫做分子人类学的学科,逐渐颠覆了科学家的认识—— 尼安德特人不能算祖先,最多可以算个亲戚 。不过,这位亲戚,确实在现代人类的基因中,留下…
到底谁是人类的祖先?曾经有很长的一段时间,科学家认为生活在距今12万到3万年前的尼安德特人是现代欧洲人的祖先。 但是,一门叫做分子人类学的学科,逐渐颠覆了科学家的认识—— 尼安德特人不能算祖先,最多可以算个亲戚 。不过,这位亲戚,确实在现代人类的基因中,留下…
© Yulliii/Shutterstock When the Neanderthal genome was first sequenced in 2010 and compared with ours, scientists noticed that…