Zerg evolution road

Chapter 109 Antarctica
What Zhang Fan is most curious about in the Antarctic Circle is a creature called the crocodile ice fish.

It looks a bit like a crocodile, but much smaller than a crocodile.The whole body is also transparent and feeds on small creatures.

When Zhang Fan saw this creature for the first time, it was eating, completely ignoring the gigantic Sky Swallowing Beast.

This cute crocodile ice fish is also a vertebrate, but it has evolved a circulatory system that can survive without heme.

It can directly extract oxygen from the ocean to meet its own needs, and its heart is much larger than that of similar fish.

It is worth mentioning that because of the polar temperature, the oxygen content in this sea area is much higher than other places.

Therefore, most of the sea creatures here have directly used their skin or special gills to breathe.

These little guys are not necessary for Zhang Fan, they just look better.

If it is true that the gene is really useful, it has not been seen. For now, the crocodile ice fish still needs oxygen to breathe, but Zhang Fan's arms can completely change the breathing method.

After crossing the ice crocodile, Zhang Fan also saw a salp, which is also a transparent creature.

It looks a bit like a jellyfish, but can be seen through the skin, it's more like a vertebrate.

The salps reproduce very quickly, and Zhang Fan saw that the salps released their eggs into the body at will, leaving them to fend for themselves.

Salps are like a sharp sword, but this kind of sword seems to be motionless, and they are more of sharing the resources of the body to the next generation.

For other fish or marine organisms, they are rarely used as the main food, and have no nutritional value. 90.00% of the body is water.

In addition to salps, Zhang Fan also saw the largest swarm in history, a krill swarm.

The size of krill is very small, only a few centimeters, but it is scary to go home after this number gathers.

Looking at the large group of krill in front of him, Zhang Fan estimated that there must be tens of billions of krill in his heart.

Just in time, the krills can replenish some energy for the swallowing beast.

The Sky Swallowing Beast approached the krills, opened its mouth, and sucked it hard, and the group of krills fell into the Swallowing Sky Beast's mouth one after another as if uncontrollably.

Then, the sea wolves in the body will kill the krill in the mouth, and then drag it into the stomach of the swallowing beast.

The sky-swallowing beasts kept devouring the krills, and there were no more krills in the area I saw.

Other creatures turned around and left without seeing the krill. They continued to look for food in order to survive.

In the sky.

The Devourer has come to the very center of Antarctica.

The sea here stretches as far as the eye can see, and there are still a lot of broken ice on the sea surface. It is now summer in the southern hemisphere.

The northern hemisphere has once again fallen into the cold winter season, but the current cold winter has no effect on Zhang Fan, so what to do is what to do, the worker bees are still busy collecting materials.

Some crushed ice has formed on the Devourer's body, and the flying dragons around are helping it clean it up.

The host also brought the creep blanket to feed it. After eating the snacks, the Devourer continued to patrol with a large force.

All the troops were eating, and Zhang Fan was also thinking about the danger of Zero Talk in his free time.

It is better to believe what is there than to believe what is not. Although Zhang Fan remains vigilant against Ling, since he has been reminded, let's listen to it for the time being.

Don't be self-righteous and think that now that the world is invincible, you don't have to be afraid of anything. You must know the story of someone who wants to be outside the world.

OK, let's move on.

The marine resources here are very rich. In addition to some necessary marine life, there are also some natural combustible ice.

Combustible ice is a kind of natural gas hydrate, which is an ice-like crystalline substance formed under high pressure and low temperature, and ignites when exposed to fire.

Zhang Fan also found these combustible ices in the North Pole, but the amount is not as large as that in the Antarctic.

There are two reasons. One is the temperature problem. After Zhang Fan's long-term observation, he found that the sunshine time in the northern hemisphere is much longer than that in the southern hemisphere.

This results in temperatures generally lower in the Antarctic than in the Northern Hemisphere.

If it weren't for the regulation of seawater temperature, the entire southern hemisphere would be plunged into a world of ice and snow.

Zhang Fan speculates that the current ice age has affected the southern hemisphere more than the northern hemisphere. He plans to stay here first and observe the specific weather conditions here.

In fact, Zhang Fan had a plan in mind, he wanted to build a combustible ice mining base here, and the combustible ice might be used in the future.

Time passed again.

During this time, Gaia has already started building tunnel worms.

Tunnel bugs in the ocean and tunnel bugs on land go on at the same time.

Let’s talk about the tunnel bugs on land first, because the Zerg has a strong ability to drill holes, so Gaia first asked the worker bees to open holes in the mountain peaks that blocked the road during this period.

Some landslides are unavoidable. Although many worker bees were killed, the work must continue.

With a passion, Gaia personally entered one of the caves to observe the internal situation.

In this regard, Zhang Fan also severely accused Gaia of not cherishing life. You must know that the resources consumed to recreate a brain worm have increased again.

Recreating a brain worm can build more than 100 armadas.

Gaia exited the cave in frustration, and ordered the worker bees to investigate, and the knowledge of geography was also growing rapidly at this moment.

The strength and density of the various rock formations were studied, and then some genes that could be used in the hatching pool were found.

First of all, it must be strong in appearance, absolutely strong, stronger than the swallowing beast or the thunder beast, otherwise it will not be able to support the collapse of the cave.

In this case, the fusion gene is needed, but all these tasks are done by Adam, and Gaia is a little embarrassed.

In the end, it was Adam himself who came over and expressed his hope to help Gaia, and Gaia accepted Adam's help with a mouth full of dignity.

It is based on annelids, but this foundation must also have the ability to proliferate, otherwise it will not be able to meet the needs of the tunnel.

So, the first tunnel worm was made with the patchwork of the two brain worms and Zhang Fan.

Let’s not talk about the length of the tunnel worm. It’s possible. The tunnel worm can grow indefinitely. As long as there are enough resources, it can grow into outer space for you.

So, in order to control its elongation, it was specially designed as a dormant creature.

It sleeps when it doesn't eat, and grows when it eats.

The excretory organ of the tunnel worm is on the skin, and it will disperse some excreted substances on the skin surface, forming a protective film of the exoskeleton.

The effect is good. The Gaia experiment smashed the big rocks from the air, but only cracked its shell, and the design of the land tunnel worm was completed in this way.

(End of this chapter)