How does a pufferfish puff up like a balloon?

🧠 好奇問題：河魨為什麼能把自己吹成一顆大球？牠變大時身體裡面裝的是空氣嗎？

🎧 這一集在聊什麼：這一集會帶小朋友認識河魨神奇的身體構造，發現牠其實是透過喝水來讓胃部像手風琴一樣張開。我們還會一起尋找河魨身上的祕密，看看為什麼牠沒有肋骨，以及牠皮膚上的尖刺到底是骨頭還是鱗片。,

👦👧 適合誰收聽：適合國小生收聽，也很適合爸媽陪孩子一起聽、一起討論。

🎙️ 節目介紹：這裡是《你想學什麼呢？》，一個用簡單、有趣的方式，陪孩子探索世界各種為什麼的 Podcast。

🧠 Curiosity question:Why do pufferfish puff up into a big ball, and what is actually inside them when they expand?

🎧 What this episode is about:In this episode, we explore the amazing biology of the pufferfish and learn how they swallow water to expand their flexible stomachs. We will also find out why these fish do not have ribs and discover whether their sharp spines are actually bones or modified scales.

👦👧 Who this episode is for:This episode is suitable for elementary school children and is great for parents to listen together with their kids.

🎙️ About the Podcast:What Do You Want to Learn? is a kid-friendly educational podcast that uses simple and engaging explanations to explore everyday “why” questions with curious young listeners.