The highly feared crocodile will close its mouth to crush anything but not the Egyptian plaver birds.
The Egyptian plaver bird goes into the mouth of crocodiles to pick leftover remnants in the teeth and mouth of the crocodiles.

This way, the bird feeds till it’s satisfaction while the crocodile get its mouth clean.

The crocodile understands this, so It will not kill the Egyptian plaver bird.

Dont keep this knowledge to yourselves all alone, be kind share and keep sharing.

We are nature.