Mornings in Alaska always come unusually early. As soon as it was dawn the next morning, Jiang Ke walked out of the tent. Andrew lay outside Ruby's tent, heard footsteps, his ears moved, and he looked around vigilantly. Seeing that it was Jiang Ke, it shook off the heavy dew on its head, quickly got up and leaned over, rubbing around Jiang Ke's legs.

"Good boy, thanks to your vigil." Jiang Ke bent down and rubbed Andrew's head.

"Whew." As if he was afraid of waking up Ruby and Jaime, who were still resting, Andrew snorted softly and followed behind Jiang Ke.

The forest was filled with a lot of moisture in the early morning, and the bonfire outside the tent had been extinguished by the morning fog, and it was a black pile. Jiang Ke walked over to the backpack and squatted down to check the items inside. They walked in a hurry at the crash site, carrying almost all the supplies, and now the backpack was depleted with food and only a bottle of pure water remained. As far as the eye can see, the three of them face not only external threats, but also a lack of food and water.

Jiang Ke put the water aside, stood up, and patted his chest. Sure enough, the tearing pain in his chest yesterday was gone, and in one night his ribs had taken care of themselves, and his wounded internal organs had recovered. He walked to the river, looked at the rushing water, and a thought slowly took shape in his heart. Since there was not enough water, he decided to save the bottle of pure water for Jaime and Ruby, and try the water in the river as a test subject. Thinking about it, he filled the empty bottle in his hand with river water and drank it all.

The water is still clear and sweet, with a slight strange smell, but overall it is still swallowable.

"Andrew, I'm going to find some food now, you're here to watch." Jiang Ke walked back to the tent and emptied the bag on his back, put the saber and his M-SEEN on his body separately, turned back to Andrew and said, "I'll be back in a while." With that, he walked deeper into the forest.

Except for the faint sound of insects chirping in the forest, the sound of animals is barely audible, and the surrounding temperature is very low, and winter in Alaska seems to be on an early stage. Yesterday's giant mosquito storm looted the area, and the animals that survived hibernation deeper and more hidden. The bitter cold wind blew through the forest, and the pine needles fell, and the branches rustled.

Jiang Ke walked around the forest, the possibility of finding wild animals here is too small, and the vegetation is mainly pine tundra, and even finding a wild fruit is almost an impossible task. He turned his head and walked towards the river, the earth's environment changed very suddenly, the animals were still moving according to their biological clocks, so at this moment the delicacy on the table in Alaska should be a school of salmon swimming upstream.

He found a small waterfall, squatted among the gravel, and waited quietly for the salmon who came to "jump the dragon gate".

In the distance is the animal cemetery where the giant mosquitoes carried out the mass slaughter yesterday, and some of the small animal carcasses in the river have been washed away by the river, and the carcasses of large animals that cannot be moved by the current are even more swollen. To the naked eye, some carnivores can be seen feasting on the carcass. They tore at the entrails and flesh of those corpses, fighting for the ones that were well preserved. The female just searched for the remaining dregs in the distance, and when she found a few, she rushed back to the forest and disappeared. Occasionally, some scavenging birds, which have become huge, come down to get a piece of the pie, and when they are happy, they will raise their heads and chirp a few high-pitched times. Everything has returned to its original natural state, and the animals that have experienced horror are still alive and trying to survive.

Jiang Ke found a thick branch from the side, took out a saber and sharpened it into the shape of a bamboo pole, a sharp end that could be used to spear fish. There was a brown bear opposite him, it had little interest in those corpses, not even Jiang Ke, it sat quietly by the river like a seasoned fisherman, the rapidly falling temperature made it a little overwhelmed, but it still had to fill its stomach first, it had the same purpose as Jiang Ke, it was those returning salmon.

Soon, a fluctuating red shadow appeared in the river, moving rapidly in the direction of the waterfall, which was a pod of sexually mature salmon, and the fiery red color indicated that they were ready to breed. They escaped sharks from the sea and came all the way to breed offspring by freshwater streams. Salmon are large and shallow, and their dorsal fins are exposed, struggling towards their destination.

The claws of brown bears were originally extremely lethal weapons for them, and the evolved brown bears were even more powerful. The brown bear on the opposite side showed speed disproportionate to its size—its giant claws flicked in the water like harpoons, and a few salmon fluttered in its palms.

Jiang Ke was not far behind, the branches were quickly inserted in the water, his eyesight was very accurate, not to mention that these salmon were huge and crowded together, and soon, he also pulled up a few salmon that were still struggling. The remaining salmon quickly snapped together and swam away from where their companions had been attacked.

"Whew!" The brown bear on the opposite side roared angrily, and it couldn't wait to stuff the salmon into its mouth, but it was caught in the roof of the jaw by the fin. Jiang Ke only then looked down at the fish on the bamboo pole, and as expected, the salmon also evolved. Their gills are larger than before, and they even have a few extra layers inside for filtering, and their fins have become harder and more powerful, erecting like steel needles, no wonder even the brown bears that feed on them all year round.

Jiang Ke turned his head to look at the red shadow in the river, they tried their best to jump out of the water in front of the waterfall, struggling to swim upstream, even if the environment changed, they were still improving their survival rate through their own evolution, and they were still fighting to survive.

……

When Jaime heard the movement, he rolled over, and was confused about squinting for a moment, but suddenly remembered that he was in the wild. Everything he had experienced yesterday came to his mind like a slideshow, the blood-soaked abdomen of giant mosquitoes, the dried corpses of gigantic animals, and the blood and urine all over the floor. Jaime sat up sharply, gulping in for air, as he recalled his time and time again on the verge of suffocation, struggling on the brink of death.

"Ke, are you outside?" He found that there was no one around him, so he quickly got up and asked nervously, "Ke?" He climbed out of the tent and saw that everything around him was calm, and Andrew glanced up at him, then lowered his head and leaned down on his front paws.

At the door of the tent, where the bag was kept, there was a damaged M-SEEN and a bottle of mineral water. Jaime only relieved himself when he saw the machine, this is something that Jiang Ke regards as a treasure, if something dangerous happens, he will not carry his schoolbag on his back, leaving M-SEEN is a message that means he will be back in a while.

"Hey, Andrew, where did Ke go? Do you know? He walked over to Andrew and crouched down, rubbing his head, "Are you protecting us?" I don't think you should be called Andrew, the ability to get bigger and smaller like you. Wait a minute......" Jaime was suddenly stunned, "can it be bigger and smaller?" It occurred to him that when he first met Andrew, he was a gigantic man, just like the Yukon wolf, the national bird, and even the giant mosquito he encountered along the way, but at this moment he had changed back to the size of a normal Alaskan dog. Andrew spends most of his time with Ruby and doesn't notice it much himself.

"It's strange, the teddy that was used for testing at the time has also gotten bigger," James said to himself, "when did this begin?" ”

"Hmm......" Just as he was lost in thought, the sound of Ruby stretching was heard from the other tent. Andrew heard his master's voice, shook his head and fled from Jaime's men, and walked to Ruby's tent with small steps.

"Hey, Ruby, get up, you're going to miss the school bus!" Jaime followed Andrew and joked into the tent.

"I wish there was still such a thing as a school bus." Ruby got up and said, her face was a little pale, the color of her lips didn't look very good, the whole person was sick, and even her voice was a little weak.

"Miss, can't you get used to sleeping on the 'tundra carpet'?" Jaime reached out and pulled her, "You look so bad." ”

Ruby rubbed her head and quickly tied up her tangled hair, she looked around and asked, "What about Ke?" ”

"I guess he's out scouting and might bring us some breakfast back." Jaime handed the water bottle to Ruby, "Let's take a drink of water and slow down." Attention, save water, we only have this one bottle left. ”

Ruby unscrewed the cap and took a sip before tightening the bottle again. She took a deep breath and reached out to rub her temples again, "My head is so dizzy, I feel like I walk lightly, and what I hope most now is a place where I can take a hot shower." She pulled down her mud-stained clothes and sat down very weakly.

"Ruby, there's something I want to ask you", Jaime leaned over to Ruby's side, "Has Andrew always been like this?" ”

"What status?" Andrew put his head on Ruby's knee at the moment, whimpering and rubbing around.

"That's it...... You see it's 'small' Andrew' now," James gestured, "and the first time I saw it, it was this big." Is it always possible to switch back and forth between large and small body types? ”

Ruby nodded, "It's probably that when you're in danger, you'll get bigger, and when you're safe, you'll get smaller." ”

"The danger will become greater? Will it be smaller when it is safe? Jaime repeated Ruby's description, but thought of Jiang Ke, who would trigger evolution when he was in danger, and normal when he was safe...... However, the Yukon wolves have maintained a steady giganticism, and can even be said to be atavistic phenomena, how to distinguish this phenomenon, and what is the difference? Why is this happening?

Jaime let out a long sigh, "Ruby, I'm just as you look forward to the school bus now, and I want the Fairbanks bus to show up and drop me off in the lab. ”