Organic life on this planet is continuously producing and consuming. That is why organic life is continuously expanding. Eventually the flora covered the whole earth, except where it was too hot or too cold. 11 Organic life on earth will keep expanding until it comes to a balance. Food has always been plentiful because it is life itself that supplies it.
Life feeds on life.
Consequently more and more species have developed, and they have grown larger and larger. The trees got taller. The animals got bigger. We have seen Sequoias thousands of years old scratching the sky and reptiles going the way of modern-day corporations. But balance is a dynamic condition.