All the evolutionary goals of "deuterostomes" in the "Cambrian" era were to serve themselves to enable them to escape faster.
Therefore, "deuterostomes" also need to make major changes to their respiratory systems, forming gill arches through skin folds or directly using appendages to enhance their respiratory efficiency. Later, the gill arches on the head can also form more efficient respiratory gills. hole.
Intense exercise requires a constant source of energy. On the one hand, the energy source relies on inhaling oxygen, and on the other hand, it relies on the heart to provide energy. In this way, the primitive heart is formed.
After this series of enhancements, "deuterostomes" have basically reached the pinnacle of athleticism for their size during the "Cambrian" era, and can even escape the pursuit of most predators.
Basically, only a small number of creatures can barely catch up with the "deuterostome creatures" by virtue of their size advantages, but they generally lack flexibility and cannot catch them even if they catch up.
Therefore, in the ecological niche of small animals, "deuterostomes" basically occupy it steadily, squeezing out the living space of other organisms, forcing them to find other ways.
For example, some "deuterostomes" who did not want to take this route gradually formed the so-called "hemochordates", corresponding to which our ancestors were "holochordates".
The shape of "hemochordates" in their childhood was not very different from the "holochordates" at that time. They both looked like a group of bugs.
But when they reach adulthood, the difference becomes apparent. "Holocortes" will continue to use their athletic talents and follow the Assassin-style route.
However, "hemochordates" know that due to their own situation, they cannot compete with "holochordates" in this ecological niche, so their strategy is to degenerate their motor organs and switch to filter feeding after adulthood.
At that time, the "hemochordates" will take root in the mud layer of the seabed and compete with echinoderms and other things for food. They will look like a group of plants.
This group of "hemochordates" is still not extinct, and nearly a hundred species have been discovered. It can be said to show the diversity of nature and pave a new path for animals.
If you are not willing to abandon your locomotor organs and become filter-feeding organisms like "hemochordates", and your mobility cannot catch up with "holochordates", you will end up dying like "archaeochordates".
Therefore, although it was only in the "Cambrian" era, "holochords" have already shown their future potential, and they can vaguely see some of their dominance of the biosphere in the future.
At this time, there were some "deuterostome players" who were too idle and thought they could try to change their fate. They called on everyone on the forum to take action in advance: "Exterminate the deuterostomes, and the world will eventually return to its original mouth!"
After all, it will take several game versions before the rise of "holochordates". If we can exterminate all "deuterostomes" in advance, wouldn't it be possible to make the era of "prostomes" last forever? ?
Of course, these statements are just for fun. Considering the prosperity of the biosphere today, the speed at which players destroy species is not as fast as the speed at which the species itself reproduces.
Among animals, except for humans, there is no ability to widely exterminate other animals. On the contrary, seemingly gentle and harmless plants can do so over time.
If players can now control plants and consciously evolve to cause sudden changes in global temperature, there may be a chance that "deuterostomes" can really be exterminated. Of course, many people will be AOE during this period.
So why did the "deuterostomes", or to be precise the "vertebrates" among the "deuterostomes", eventually become the overlords of the biosphere in the future?
This is because when the era entered the "Paleozoic Era", the factor that restricted the size of organisms was their own carrying capacity. If they were too large, they would crush themselves.
Moreover, as a species becomes larger, it needs more advanced respiratory and metabolic systems to meet its daily and eating needs.
With the emergence of exoskeletons and the development of skeletons, the problem of body size has gradually been overcome by organisms, but another hurdle stands in front of organisms, namely the species' own neural response speed.
The original nerve conduction speed is relatively slow, which means that the larger a species is, the slower its reaction speed will be. This is the biggest limitation on the size of the species.
Why are insects so small? It's not because they don't want to continue to grow bigger, but if they are larger, their reaction speed will become more cumbersome.
It is undeniable that the so-called "Era of Giant Insects" occurred in history during the Carboniferous Period, but that era had certain special characteristics.
On the one hand, the climate conditions of this era were suitable. In the "Carboniferous" era, almost the entire earth's surface was covered by dense rainforests, providing a suitable living environment for "giant insects".
On the other hand, it was because the "vertebrates" had not yet completed their landing at that time, and the giant insects had been completely squeezed out of the ocean by the former, and could instead dominate the land.
So as game consultant Cao Yuanlan said, as a game that only focuses on the competitive advantages at the top of the food chain, "arthropods" are scum from the middle of the game.
After all, the main advantage of this group of creatures in the later stage lies in its various incredible abilities, rather than direct head-on confrontation with top predators.
Cao Yuanlan described this in this way. You can't use the idea of humans being bitten to death by tigers in a duel to mock the worthlessness of the human species. After all, the brains of our ancestors that have evolved for millions of years are not meant for you to fight tigers in a duel with your bare hands.
But reality is reality and games are games. In the game "Epic of Life", the combat ability of species determines everything, so at least in the "Cambrian" era, the protozoan creatures can be said to be killing everyone.
The duration of the "Cambrian Period" is as long as the "Paradise Period". It lasts for a full month in the real world and will end with the end of 2106.
Therefore, the "Cambrian" era is divided into various stages. Of course, there will be no large-scale version updates in these stages, and it can be launched online after a little repair.
When the era reaches this stage, it is also time for players to experience what is true "species extinction" and what is "species extinction".
Although species extinctions have occurred in the "Paradise Age" before, the objects of extinction were "Paradise Age creatures". The extinction was promoted by countless players, so they would not have any personal experience of this.
It will be different in the "Cambrian" era, because there will be real "species extinction" in this era. Although it is not as powerful as the five large species extinctions, it is still enough to last a small species extinction.
