The cave is so dark that these nocturnal snakes that live in bat caves are essentially completely blind and deaf

In fact, the earth's crust itself is a natural source of minerals, many soil and rocks contain a certain amount of salt, careful observation of cattle and sheep should know, cattle and sheep in the grass, but also often "eat soil" or lick the stone, they do so, in fact, the purpose is to obtain the salt

In the wild, wolves are pack animals, and by living in packs they stand at the top of the food chain, but despite this, they face daily threats