Yes infact they do use mud for sun screen!
Yes, the mud acts as a sunscreen, protects from insect bites and helps skin cooling.
To save themselves from the heat of the sun. They often blow dust on themselves or roll in the mud and use the dirt/mud as sunscreen. The rough skin could be so that dirt sticks to it more easily.
they use it as an insect repellant
This could apply to several animals: the elephant (plural elephants) the rhinoceros (plural rhinoceroses, or just rhinos) the pig (plural pigs)
Yes, yes they can. Most people opt for the less messy approach and use the sunscreen made in a lab, but people and animals have been using simple mud as sunscreen for centuries. Just be sure to get a thick, even coat, and reapply when your mud-screen dries and starts to flake off.
They take dust baths or wallow in mud to make a natural type of sunscreen which also keeps them cool. If you ever wondered why the elephants were throwing dirt around at the zoo, now you know.
it cools them off
Yes elephants do have habits. They enjoy rolling around in the mud.
Pigs lie in mud to cool themselves down and to prevent themselves from getting sunburns. Since a pig's skin is so unprotected, just as ours is, they use mud as a sort of completely natural, but utterly smelly, sunscreen.
Elephants eat moss grass warter and mud only wild elephants eat that
Mud
they eat dirt mud and water