What Causes the ‘Shape’ of a Leaf and Why Are Leaves So Diverse?

Leaves can be shaped like a star, a heart, or even a sword, and they all have a reason! Imagine that leaves are like little factories for plants. They take in sunlight to make food, so their shape helps them do the job better. Some leaves grow wide to catch more sun, while others are narrow to save space or avoid being broken by wind. Just like how you might wear different clothes depending on the weather, leaves change shapes based on where they live and what they need to do.