In northern Tanzania, there is a lake called “Natron” , in whose waters contain substances that contribute to fossilization beings. These animals and birds who have decided to take a dip in it, it is not lucky enough to die in this place. Its water temperature is 60 degrees Celsius and the alkalinity reaches from pH 9 to pH 10,5. This is what helps to preserve the dead creatures.
Due to the large amounts of salt, soda and lime animals and birds become fossilized in the waters of this lake.