Friendship and Betrayal
The Earth, unlike any other observable planet, has quite diverse biomes and environments. There are planets in our solar system and beyond, but they are more or less all of one environment. Some are all deserts, others are simply rocky balls of ice. But here on Earth, there are deserts and tundras in one world. (However, as a desert is defined as an area of land that receives only two inches of rainfall or less each year, tundras would qualify as deserts).
Earth is the perfect battlefield. It has every type of environment needed to support a heavily-diverse range of specimen. And all of those specimen, which are built to survive in their own environments, interact with ones of their own. A reticular python, for example, may fare well surviving in jungles, but in a tundra, an organism such as itself would never survive. A seal may fare well in the polar regions, but never so would it last in a hot desert.
Humans are the only animals fortunate enough to have traveled the world so many times that we know how to survive in a diverse form of biomes. Where any other given mammal would take centuries to evolve to grow a thick coat of fur in the tundra, humans can simply put on a few coats and other articles of cold-weather clothing. Then there is the opposite: many mammals need to shed fur slowly in times of intense heat, but humans can easily remove layers of clothing or construct shade for themselves.
Anyone who asserts that humans are apart from nature is once again wrong. Humans are not apart from it; rather, we as humans have learned to use nature more effectively than any other organism. Where another animal may wander barren fields to find shelter, a human will craft a shovel with whatever materials are available and dig themselves a hole in the ground. Where two savage animals may come to killing each other over a scrap of food that both of them long for, humans will communicate and reach terms on how to share the food.
On that note, that is another advantage that we humans have in this war of nature: we are by far the best at crafting alliances. We befriend our fellow humans, of course, and yet we have also befriended many other animals over the years. We have domesticated dogs, pigs, cows, sheep, goats, and even many unusual, non-beneficial animals as pets. Yes, in many cases the animal does not benefit, such as a cow raised for slaughter, and that is the opposite thing that we are also very good at: betrayal.
We are good at keeping promises only until we break them. That is the deal. “I will care for you,” a human may say to a pig. “But as soon as I am hungry, or you become a nuisance, I will kill you and eat you!” And yet, even though our natural desires are so simple, we cannot stop inventing ways to kill each other and other organisms of nature.