[Death Energy], a tag obtained from the swamp worm, causes the death of the dinosaur guard.

It conflicts with the Life Force type tag.

However, dinosaur guards who don't have a life-related tag die faster.

Even, there was a dinosaur that died in the process of evolution.

When this was discovered, the local bank thought that it had been invaded by foreign enemies and that the stronghold had been attacked.

It turned out to be not.

The [Death Energy] label of the [Swamp Worm] is harmful to individuals with [Life Force].

So, how did the swamp worm survive?

Dixing carefully studied and dissected it, and was stunned to find a problem.

It's hard to say whether the swamp worm can be considered a life or not......

No, to be precise, the part of the swamp worm that has "death energy" is hard to say whether it counts as a body part or not.

Exoskeleton..... No, should I say "hermit crab"?

When he carefully used his thick claws to dissect the swamp worm and used blood energy fluctuations to sense "fluctuations", he found that the "body" of the swamp worm was located on the inside of its body.

Its inner body and outer body are isolated, and the energy of this death attribute cannot enter the inner body from the outer body.

In a sense, the parts of the body that have the attribute of death can be counted as its shell or "teeth", and they use the energy of death to have a destructive effect on anything that has vitality, and they use it to crush all kinds of food, and then send all the edible parts from the "residue" into their mouths.

The "flesh" located in the outer layer is actually equivalent to a "shredder" structure.

At the same time, it also uses the anti-life properties of death energy as armor and shields to keep other creatures from talking about them.

A magical and subtle creature!

Nearly a hundred swamp worms were broken by repeated dissections, and under the perception of blood energy fluctuations, they discovered the ground line of this special structure, and they couldn't help but feel a little emotionally at its exquisite structure.

Is this a structure that evolved naturally?

Dixing couldn't help but think about this question for a while.

In order to obtain this [death energy], it is necessary to first evolve this special structure that can isolate the life force and death energy from each other.

And the earth line also has some ideas-

Exoskeleton.

If you have to let your own dinosaur guards evolve this structure, the only possibility is probably to let the scales evolve in the direction of the exoskeleton, and then evolve this structure.

Di Xing glanced at the [Little Shield Armored Dragon], and at present, it is more suitable.

The problem, however, is that this particular structure does not form a label.

He needs to try many times, whether it is to target the evolution on the [Exoskeleton Armor], use the [Exoskeleton Armor] to evolve the [Death Energy], or directly use the [Branch Evolution] to bet on randomness.

Without a sufficient number of test subjects, it is estimated that it will take many times before it succeeds.

Speaking of this, he couldn't help but glance at the label of [Little Shield Armored Dragon] again-

【Squamous Exoskeleton】

Exoskeletons are very dangerous for arthropods, especially terrestrial arthropods.

Anyone who knows anything about spiders should know that when older spiders molt, they are prone to danger.

Gravity is a big influence on terrestrial arthropods that are temporarily not supported by hard structures, especially during the molting period.

Aquatic arthropods, gravity does not need to be taken into account.

However, in addition to gravity, there is also the hardness of the shell itself, and it is not uncommon for some accidents to die when they can't hold up when molting and molting.

However, this is not expected to happen to the small shield armory, which has an internal skeletal structure and is more like a snake than an arthropod

The ground line has been carefully examined by blood induction.

The [exoskeleton] label that the earth gave it evolved fell on the [dorsal armor specialization], and it did not form a completely closed structure.

It evolved into an exoskeleton that was concentrated on a bony carapace on the back.

Like many ankylosaurs, the armor structure on the back of the small shield dragon is intradermal osteogenesis -

The nail slices serve as a supporting and shaping structure close to the flesh on the surface of the body, and are not connected to the ribs.

However, there are also some ankylosaurus spike-shaped bone fragments that are fused with the ribs or even grow from the ribs.

Either way, though, beyond their bony plates, there is a layer of thin or thick hard scales that coat these bony structures.

To put it simply, ankylosaurs had two layers of armor, "scales" and "bone plates".

However, there is one thing -

The bone plate of the ankylosaurus is not solid, but somewhat similar to a bird skeleton, like a sponge, with a fibrous network of hollow.

Although the armor is hard enough to resist attack, its weight and resistance to impact can easily cause internal injuries.

The bone plate of the ankylosaurus, in the face of a blunt blow, also has the effect of slowing the impact.

The same goes for the little shield dragon.

After the evolution of the [exoskeleton], the bone plate and bone fragments of the small shield armor dragon were completely separated from the ribs, and they were also completely separated from the subcutaneous position, no longer subcutaneous osteogenesis, but directly located on the outermost body surface.

The scales did not disappear either, but formed a gap between the bony plates -

The bony plates and scales intertwine to form an exoskeleton armor that resembles fish scales.

Well, it's like pangolin or snake scales.

My back, which used to be a little stiff, is now more flexible.

However, it is a pity that this armor of the small shield armor dragon only exists on the back.

The biggest problem with ankylosaurs is this, the back armor and even the head and tail defense are very strong, but except for the shield dragon, the abdominal defense is relatively low, and it can't be compared with the turtle.

When the Tyrannosaurus rex preyed on the ankylosaurus, it was a routine operation to overturn the ankylosaurus kenken or attack the flanks and legs of the ankylosaurus, and the Tyrannosaurus rex did not go to the extent of directly gnawing the back plate.

What's more, although Ankylosaurus is theoretically also in the diet of Tyrannosaurus rex, it is not the main hunting group, and its status in the recipe should be described as "occasionally eating".

The problem of compensating for weaknesses...... After that, it would be good to evolve the exoskeleton a few more times.

Terraching is also interested in the defense mode that fills the exoskeleton armor with energy.

Finally, return to the swamp dragon.

The Swamp Worm's [Aquatic Animal] bonus tag and a special [Decomposer] feeding tag have been successfully evolved on the Yar Marsh Dragon.

However, there are some oddities.

What's strange?

According to the current summary, the labels "omnivorous", "herbivorous", "predator", and "decomposer" are often associated with a series of digestive organs.

The evolution of these food tags will also cause the digestive structure of the target material to change in the direction of the digestive structure of the target material.

"Aquatic animals" and the like are supposed to be related to organs such as underwater breathing.

But......

Earth's gaze fell on the Yar Marsh Dragon.

No structures have been found in earthworms or amphibians that breathe against moist body walls, nor have they been found to resemble gill structures.

Could it really be "anaerobic respiration"?

No, it stands to reason that only parasitic worms should take the inefficient route of anaerobic respiration, and aquatic worms should be gill or body walls that exchange oxygen from the water.....

However, none of these structures have been found on the body of the Yarmarosaurus.

Abnormal......

Wait, isn't the Yar Marsh Dragon's appetite getting a little bigger?

PS: Do you think that the organ structure of "breathing elements" exists in a world with elemental energy?

In a world where oxygen levels are different from those of Earth, or even without oxygen, what kind of energy would be converted into the primary form of respiration?

Even in a world with the same oxygen content as the Earth, is there any change in the way of breathing in the presence of elements?