1. Neoteny is a biological phenomenon where an organism retains juvenile characteristics into adulthood.
幼龄特性是一种生物现象，一个生物会保留幼年特征到成年阶段。

2. Some species exhibit neoteny as an evolutionary adaptation to their environment.
一些物种表现出幼龄特性作为对环境的进化适应。

3. The retention of neotenic traits can have important implications for the behavior and morphology of an organism.
幼龄特性的保留对生物的行为和形态可能有重要的影响。

4. Neoteny is often studied in the context of developmental biology and evolutionary theory.
幼龄特性常常在发育生物学和进化论的背景下研究。

5. Some researchers believe that human neoteny played a role in the development of our species' intelligence.
一些研究人员认为人类幼龄特性在我们物种智力发展中扮演了一定角色。

6. The study of neoteny in amphibians has provided valuable insights into the process of metamorphosis.
对两栖动物中幼龄特性的研究提供了对变态过程的宝贵见解。