Want to see how these fascinating numbers are expressed in nature? No need to visit your local pet store all you have to do is look around you.

The ratio between the numbers in the Fibonacci sequence (1.6180339887498948482.) is frequently called the golden ratio or golden number. This series of numbers is known as the Fibonacci numbers or the Fibonacci sequence. Basically, number is the sum of the previous two. The equation that describes it looks like this: Xn+2= Xn+1 + Xn. This leaves three pairs of rabbit, two of which will give birth to two more pairs the following month. When month three rolls around, the original pair of rabbits produce yet another pair of newborns while their earlier offspring grow to adulthood. At the end of the second month, the female gives birth, leaving two pairs of rabbits. Rabbits can't reproduce until they are at least 1 month old, so for the first month, only one pair remains. Think about it: Two newborn rabbits are placed in a fenced-in yard and left to, well, breed like rabbits. In 1202, Italian mathematician Leonardo Pisano (also known as Fibonacci, meaning 'son of Bonacci') pondered the question: Given optimal conditions, how many pairs of rabbits can be produced from a single pair of rabbits in one year? This thought experiment dictates that the female rabbits always give birth to pairs, and each pair consists of one male and one female.

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