Cactus. Spines on a cactus. The arrangement of spines around the central point is according to the Fibonacci series, a number series in which each number is the sum of the two preceding it, for example 0, 1, 1, 2, 3, 5, 8, 13, 21 and so on.
Cactus. Spines on a cactus. The arrangement of spines around the central point is according to the Fibonacci series, a number series in which each number is the sum of the two preceding it, for example 0, 1, 1, 2, 3, 5, 8, 13, 21 and so on.
