Leaves change colour in autumn.

树叶在秋天改变颜色。

Some insects can change colour.

有些昆虫可以变色。

Why Do Leaves Change Colour?

树叶为什么会变颜色？

Leaves - Why do they change colour?

叶子为什么会变颜色呢？

This kind of insect can change colour.

这种昆虫会变色。