1. The vertebrated animals include mammals, birds, reptiles, amphibians, and fish.
脊椎动物包括哺乳动物、鸟类、爬行动物、两栖动物和鱼类。

2. The fossil record shows the evolution of vertebrated organisms over millions of years.
化石记录显示了脊椎动物的演化过程，持续了数百万年。

3. Vertebrated animals have a backbone that provides support and protection for their spinal cord.
脊椎动物拥有脊柱，为脊髓提供支撑和保护。

4. Scientists study the genetics of vertebrated species to better understand their evolutionary history.
科学家研究脊椎动物物种的基因来更好地了解它们的演化历史。

5. The classification of vertebrated animals is based on shared characteristics and evolutionary relationships.
脊椎动物的分类基于共同的特征和演化关系。

6. The diversity of vertebrated species is astounding, with adaptations to various environments and lifestyles.
脊椎动物物种的多样性令人惊叹，适应了各种环境和生活方式。