All patients in this study were female, aged 4 to 23 years, were well below the fifth percentile in height and weight, had failed to develop sexually, and lacked the use of language. Karyotype and ...

来自Scripps研究院，上海交通大学等多国研究人员组成的研究团队发表了题为“Inhibition of SRGAP2 Function by Its Human-Specific Paralogs Induces Neoteny during Spine Maturation”的文章，发现了一个大脑发育基因的额外拷贝，这一拷贝出现在240万年前的古人类基因组中，能帮助成熟 ...

For decades scientists have noted that mature humans physically resemble immature chimps—we, too, have small jaws, flat faces and sparse body hair. The retention of juvenile features, called neoteny ...

The Eastern Tiger Salamander has managed to survive in an inhospitable and unlikely habitat in Wisconsin. Courtesy of Tamara Thomsen, Wisconsin Historical Society Dead leaves drift on the green, ...

Be it in sports or comedy, they say that timing is everything. In evolution, it's no different. Many of the innovations that have separated us from other apes may have arisen not through creating new ...