13 Oct 2026 · 9 minNew
Why do we lose our baby teeth? 我们为什么会换牙?
Together, we discover that baby teeth were never meant to stay forever, what's really happening under the gums long before a tooth ever falls out, and the animal that grows thousands of teeth in its lifetime. 我们会发现,乳牙其实从一开始就不是要一直留着的, 还有,在一颗牙齿真正掉下来之前,牙肉底下到底发生了什么事,以及有一种动物,一生中会长出成千上万颗牙齿。 Perfect for little listeners aged 5–8.






