What do people mean when they say that a giant monster like Godzilla would “collapse under the weight of itself?”

Question

Wouldn’t a monster that big have extra large bones and muscles to support all that mass?

In: 1458

Answer 1

As things scale up their volume increase by the square of the amount that areas increase. Bones get their strength from cross sectional area, but the weight increases with the volume, so the strength just can’t keep up with the weight.