What do rabbits, nature’s cutest fluffballs, have to do with one of the most famous patterns in mathematics? Well, imagine this: a single pair of rabbits start multiplying—just two at first, but soon, the field is hopping with Rabbit DeNiros, Luke Skyhoppers, Marilyn Bun-roes, and Jessicas. Before you know it, you’re asking yourself: How many rabbits are there?’ And boom—you’ve