Here are a few descriptions for the WordPress post tag “動物起源” (Animal Origin) in Traditional Chinese, with varying levels of detail and focus:

**Option 1: Simple & Concise**

* **Description:** 探索動物的起源與演化。 (Explore the origins and evolution of animals.)

**Option 2: Slightly More Informative**

* **Description:** 追溯動物的起源，包括演化歷程、分類、和其他引人入勝的資訊。 (Trace the origins of animals, including evolutionary history, classification, and other fascinating information.)

**Option 3: Focused on Paleontology/Fossils (If applicable to your content)**

* **Description:** 藉由化石和科學研究，深入探討動物的起源與早期生命形式。 (Delve into the origins of animals and early life forms through fossils and scientific research.)

**Option 4: More Detailed & Engaging**

* **Description:** 揭示動物世界的神祕起源。從單細胞生物到複雜的生命形式，讓我們一起探索動物演化的歷程，了解牠們如何適應環境，以及不同動物之間的關係。 (Unveiling the mysterious origins of the animal kingdom. From single-celled organisms to complex life forms, let’s explore the history of animal evolution together, understand how they adapt to their environment, and the relationships between different animals.)

**Option 5: If dealing with specific theories/debates**

* **Description:** 探討關於動物起源的科學理論和研究，包括爭議與新發現。 (Explore scientific theories and research about the origin of animals, including debates and new discoveries.)

**How to Choose the Best One:**

* **Consider your audience:** Are you writing for a general audience or experts?
* **Think about the content:** What aspects of animal origin do you focus on in your posts? (e.g., evolution, fossils, specific animals, etc.)
* **Keep it concise:** WordPress descriptions should be relatively brief for optimal search engine performance.

I recommend choosing Option 1 or 2 as a good starting point. You can always refine the description later based on the specific content you publish. You can add specific keywords relevant to your posts such as “演化”, “化石” or certain animal groups (for searchability). Remember to replace the description in WordPress itself – WordPress does not automatically give you a description.