Our culture conditions us to think in competitive ways. We compete for jobs, for money, for approval. We tend to think that everything is a zero-sum game. What we lose, someone else wins. One sports team wins, another one loses. And we transfer this outlook to our view of nature as well. Ecologists talk about competition being responsible for structuring communities of plants and animals, and refer to the Competitive Exclusion Principle (where two species cannot occupy the same ecological niche without one species excluding the other) as something that happens often in nature. This principle, first suggested by Gause (see G. F. Gause, 1934, The Struggle for Existence), was demonstrated in the lab when he placed two species of Paramecium into a confined space and showed that one species outcompeted the other for the resources that were available. This has led us to think that competition is common in nature.
But in actuality, cooperation is found more often than competition in nature. Think of the human body, with its vast collection of cells, all cooperating to keep the body alive and going. Ah, say the biologists, all of these cells are related to each other (i.e., they have the same complement of genes) and that is why they all cooperate. But the cells that make up the body are composed of structures that once were different organisms, and joined together into cooperative structures. Lynn Margulis has proposed the endosymbiotic theory (see L. Margulis, 1970, The Origin of Eukaryotic Cells), in which she suggested that animal cells were collections of cooperating organisms. We now know that mitochondria have their own DNA, a fact that validates Margulis's theory. At some point, animal cells did not have the same complement of genes within a larger body, yet they cooperated to form the body.
As we look at nature, we can see a lot of other examples of cooperation. Ants defend acacia trees from predators, and in turn the acacias feed the ants. Cleaner wrasse pick parasites off of predatory fish that could swallow the wrasse in an instant, but do not do so because of a cooperative relationship. The examples are numerous. And where ecologists have tried to find competition in action, the results have been elusive. Sometimes ecologists have had to resort to a historical argument, suggesting that even if competion cannot be documented now, it must have occurred in the past to separate species into different niches.
Rather than being competitive, nature tends to be cooperative. Instead of a zero-sum game of scarcity and winners and losers, nature tends to be a win-win game, with mostly winners. Yes, sometimes there are periods of scarcity and deprivation, and species can go extinct. But most of the time nature provides periods of plenty, and species cooperate with each other to use nature's bounty. A part of reconnecting with nature is recognizing the harmony that exists among species in the natural world.
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