The key to super strength is a skeleton on the outside of your body.
The 1-and-a-quarter-inch dung beetle, nature’s strongest creature relative to its size, can move balls of poop
This is due to a mathematical principle called the square-cube law. Astronomer and physicist Galileo Galilei came up with the idea 400 years ago, which states that, as a shape expands, its volume grows faster than its surface area. For example, if a human doubled in height, they would experience an eightfold increase in mass. The square-cube law helps explain why large animals are often weaker than small ones, relative to their weight.
Being light on your feet, however, isn’t the secret to insect-like super strength. So how do leafcutter ants, which can carry pieces of leaves 50 times their own weight, or Rhinoceros beetles, which can lift objects 80 times their own weight, do it? The answer is an exceptional feature of these and other small insects—their exoskeletons.
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