The giant bill of the chestnut-mandibled toucan makes up a third of the bird's body length, but thanks to a honeycomb structure, it's not as heavy as it looks.

栗嘴巨嘴鸟很大的喙占据了它身体的三分之一长度，但由于其为蜂巢式结构，它并没有看起来那么重。