How does knowledge about wildlife help humans?

In ancient times, people get everything from nature: food, building materials. Nature in our time is strongly connected with people, but we do not attach any importance to this. Knowledge about nature will help you find out the direction to the north by natural signs, by the sun or the stars, which berries are poisonous and which ones you can eat. That is why all people must study nature so that in the event of any incident, they can protect themselves and their families from danger.