A Muscrat can burry itself before(About) to die. It can burry itself about 4 feet deep and 6 yards wide.
There are several animals that bury themselves. Lizards, turtles, hedgehogs and the scarab beetle all bury themselves in dirt.
There are a lot of reasons. Usually to protect itself from predators, but sometimes they bury themselves to look for food.
it likes the moist environment!
it wants to die
A couple minutes
They do not bury themselves but do live in underground burrows. They do so as they need a place to escape severe weather, predators and a place to have their babies.
In your yard if its allowed in your state, or a pet cemetary, or you can have animals cremated.
A hedgehog will build its den where they feel it is safest; this depends on the species.
Camouflage. The frog can blend in with its surroundings, and make it hard for predators to see it, since a lot of animals have poor eyesight. If that does not work the frog will usually hop into the pond and bury itself in the mud on the bottom.
Some animals known to bury their dead kin include elephants, certain species of primates, and some birds such as crows. This behavior suggests a level of emotional intelligence and social bonding within these animal communities.
In most religions that made mounds it was to either feed animals or bury the dead.
It can suffocate animals and burn or bury the trees and plants in ash