The Fibonacci sequence is a sequence of numbers where each number is the sum of the two numbers that come before it. It usually starts with 0 and 1. So, the sequence goes 0, 1, 1, 2, 3, 5, 8, 13, 21, 34, and keeps going forever. It was introduced to Western Europe in the 13th century by an Italian mathematician named Leonardo of Pisa, who was later nicknamed Fibonacci. He used it to solve a riddle about how fast a population of rabbits could breed under ideal conditions.What makes this sequence special is how often it appears in the natural world. If you count the number of petals on a flower, the spirals on a pinecone, or the sections of a pineapple, you will almost always find a Fibonacci number. For instance, lilies typically have 3 petals, buttercups have 5, marigolds have 13, and sunflowers often have 34, 55, or even 89 petals. This happens because the pattern allows plants to pack cells and seeds as tightly and efficiently as possible without wasting any space.As the sequence progresses, the ratio between any two consecutive numbers gets closer and closer to a unique mathematical constant called the Golden Ratio, which is approximately 1.618. When you draw squares with side lengths equal to the Fibonacci numbers and connect their corners, you get a perfect geometric spiral. This "Golden Spiral" can be seen everywhere in the universe, from the shape of a seashell and the curve of a hurricane to the vast arms of spinning galaxies.
