As we all know, crocodiles are called "the overlord in water". Animals crossing the river will be dragged down if they are not careful. Therefore, most animals will stay away from crocodiles. But there is a bird that dares to pick its teeth for crocodiles. What kind of bird is it?

Crocodiles often eat meat, so it is inevitable that there will be food residues in their teeth, and crocodiles themselves will not brush their teeth or pick their teeth, so in order to protect their teeth, they need a "cleaner". Toothpick bird is a cleaner of crocodiles. When a crocodile has a full meal, it will open its mouth and wait for the toothpick bird to "pick its teeth". Toothpick birds can run into crocodiles' mouths, and crocodiles won't bite them. The toothpick bird picks up the crocodile's teeth and also completes the foraging. They are mutually beneficial. If there is no toothpick bird, the crocodile's teeth will be necrotic. If the toothpick bird leaves the crocodile, the crocodile will starve to death because there is no food. Crocodiles are ferocious, but toothpick birds dare to eat crocodile meat. Toothpick bird is also called crocodile bird because of its close relationship with crocodile.

The bird that picks the crocodile's teeth is a toothpick bird, and there is a mutually beneficial relationship between them.