You could make a similar comparison with evolution -- if the jungle is so competitive, how does the monkey find any food? The answer is that there is fruit avai

You could make a similar comparison with evolution -- if the jungle is so competitive, how does the monkey find any food? The answer is that there is fruit available, but the monkey has to invest energy and expertise (both now and via billions of years of evolution) to extract it. The bigger the fruit, the more difficult to get it.