Here are a few options for a WordPress post_tag description for “動物生理學” (Dòngwù Shēnglǐxué), translated as “Animal Physiology” in Traditional Chinese, ranging in length and complexity:

**Option 1 (Concise):**

> 探討動物身體各個系統的功能與運作。 (Tàn tǎo dòngwù shēntǐ gè gè xìtǒng de gōngnéng yǔ yùnzhuò.)
>
> **Translation:** Exploring the functions and operations of various systems within animal bodies.

**Option 2 (Slightly more detailed):**

> 深入研究動物的呼吸、循環、消化、神經等生理過程，了解生命維持的基本原理。 (Shēn rù yánjiū dòngwù de hūxī, xúnhuán, xiāohuà, shénjīng děng shēnglǐ guòchéng, liǎojiě shēngmìng wéichí de jīběn yuánlǐ.)
>
> **Translation:** In-depth study of animal physiological processes like respiration, circulation, digestion, and the nervous system, to understand the fundamental principles of life.

**Option 3 (Focusing on Applications):**

> 結合動物生理學知識於醫學、農業、生態等領域，探討動物健康、行為及環境互動。 (Jiéhé dòngwù shēnglǐxué zhīshi yú yīxué, nóngyè, shēngtài děng lǐngyù, tàn tǎo dòngwù jiànkāng, xíngwéi jí huánjìng hùdòng.)
>
> **Translation:** Applying the knowledge of animal physiology in fields like medicine, agriculture, and ecology, to explore animal health, behavior, and environmental interactions.

**Option 4 (Most comprehensive – might be too long for a simple tag description):**

> 涵蓋動物生理學的基礎概念，包括細胞生理學、神經系統、內分泌系統、肌肉骨骼系統、呼吸系統、循環系統、消化系統、泌尿系統及繁殖系統等，以了解動物如何維持生命、應對環境變化。 (Hángài dòngwù shēnglǐxué de jīchǔ gàiniàn, bāokuò xìbāo shēnglǐxué, shénjīng xìtǒng, nèifēnmì xìtǒng, jīròu gǔgé xìtǒng, hūxī xìtǒng, xúnhuán xìtǒng, xiāohuà xìtǒng, mìniào xìtǒng jí fánzhí xìtǒng děng, yǐ liǎojiě dòngwù rúhé wéichí shēngmìng, yìngduì huánjìng biànhuà.)
>
> **Translation:** Covers the basic concepts of animal physiology, including cell physiology, the nervous system, the endocrine system, the musculoskeletal system, the respiratory system, the circulatory system, the digestive system, the urinary system, and the reproductive system to understand how animals maintain life and respond to environmental changes.

**Which one to choose:**

* Choose **Option 1** for a quick and simple explanation.
* Choose **Option 2** if you want a slightly more informative description.
* Choose **Option 3** if you want to highlight the real-world applications of the subject.
* Choose **Option 4** if you have more space, and want a thorough overview. However, remember to consider how the description will display in your WordPress setup. It might be too verbose for a tag overview.

When entering this into your WordPress post tag, just copy and paste the desired option into the “Description” field. I hope this helps!