1. The study of batrachians, such as frogs and toads, is known as herpetology.
学习蛙类动物，如青蛙和蟾蜍，被称为爬虫学。

2. Many batrachians have permeable skin that allows them to absorb water and oxygen.
许多蛙类动物有渗透性皮肤，可以吸收水和氧气。

3. Some batrachians, like salamanders, have the ability to regenerate lost limbs.
一些蛙类动物，如蝾螈，有再生失去的肢体的能力。

4. Batrachians are ectothermic, meaning they rely on external sources of heat to regulate their body temperature.
蛙类动物是变温动物，意味着它们依赖外部热源来调节体温。

5. The decline in batrachian populations is a cause for concern among conservationists.
蛙类动物数量的下降引起了保护主义者的关注。

6. Amphibians, including batrachians, play a crucial role in maintaining ecosystem balance.
两栖动物，包括蛙类动物，在维持生态平衡方面发挥着至关重要的作用。