Why can't the behemoths in the movies exist? Of course, the giant monsters in the movie may exist in other worlds, even the laws of physics are not the same, of course, there may be extremely strong structures,

Why can't the behemoths in the movies exist?

Of course, the giant monster in the movie may exist in other worlds, even the laws of physics are different, of course, there may be extremely strong structures that can support such a huge body. To completely deny this possibility, you have to traverse the infinite infinity of all the worlds, and no one has this ability, which is beyond the boundaries of human knowledge and experience. Ancient people superstitious geocentric said that Confucius met two children when he traveled to discuss how big the sun was? At that time, no one knew that the sun would be 1 million times larger than the Earth, nor would it know that the sun revolved around the center of a larger galaxy, but the fact that humans did not think so did not prevent the existence of these facts. So you think I think it's useless for humans to think it's useless, not to extrapolate known experiences to all the worlds, and it's going to make a joke.

But if it is known matter on Earth, of course, there can be no giant beast of this level. Because the size of the objects that flesh and bones can support is limited, otherwise large creatures such as whales and dragons would not be able to survive by using the buoyancy of seawater to counteract gravity. Even the largest blue whale on Earth has buoyancy to offset its weight, its heart is also made of flesh and blood, the heart's endurance is limited, the heart power cannot increase indefinitely, so its body size cannot increase indefinitely. Once stranded, whales are often crushed to death by their own weight, and some will break their ribs and crush their hearts and lungs, even if they are also mammals that breathe on their lungs.

For every 10-fold increase in animal size, the size and weight increase by 1,000 times, while the cross-sectional area of the bone is only increased by 100 times, which is equivalent to 10 times the fragility of the bone. This is also the reason why many small creatures have difficulty falling to their deaths and large animals without falling. In the past, Yao Ming played basketball when he was young and had several fractures, but he had never heard of Guo Jingming's fractures when he fell.

In addition, larger animals are less likely to dissipate heat to a certain extent and will be burned to death by their body temperature, which also explains why polar bears are large. The colder the climate, the animals have a tendency to shrink the surface area to keep warm, and large animals have a relatively smaller surface area than small animals to dissipate heat and slower, and then the larger volume can save more heat, which can ensure their survival in cold areas. But when the size of the animal is large to a certain extent, at least on the land heat dissipation is a serious problem, casual breathing and running a few steps the body temperature rises to thousands of degrees Celsius, the meat has long been roasted.

But if a Godzilla-level giant monster does appear on Earth, it can maintain such a large size and move freely, and it can also dissipate heat or internal organs and resist heat, then its physical strength must be much higher than that of known materials such as steel, and it is easy to understand that human weapons are ineffective against them. At that point, you can only count on Ultraman-level or stronger superheroes to destroy them.