When the humans return, only five hundred million people return from the space home and a little over three hundred million return from Mars, which brings the total population of the human race down to a little over nine hundred million.
They have been a lot of reduction in the humans that survived the initiate out breaks of the plaque because of the bare minimum level of food, they are to ration their food supply, the old and elderly were all killed to let the younger generation be able to survive on the little food they could ration.
That number could have reduce lower than that if not for the engineering that has been done to the soil of Mars that allow some few of the human crops to grow, which save them all this life.
Since coming back to Earth, it been over eight hundred year and the population of human has increase again to over two billion despite the 'government' effort in trying to reduce the birth rate because of the food rate.
Although the air is now breathable, the soil is still not as good as it use to be and it was not only the human that died during the 'genetic icing gas'.
All the domestic animals, more than half of the terrestrial animals, the aerial animals, the amphibians died during the outbreak, few of the aquatic animal that can survive for long under the water without coming up to the surface to breathe in the air are left and those kind of animals has becomes as rare as phoenixes feathers to find that some human don't even believe that are animals of the old earth again.
The few domestic animals that the humans has their DNA samples and their female's reproductive system taken before the outbreak, the scientist have been trying their best to 'grow' those DNA and hope to achieve a miracle. But that miracle is still currently a dream.
Although they are hoping for a miracle to happen with the animal experiments, but as they say, no pain without gain.
A new mad scientist has been able to re-engineered the Magani-4 to Magani-0 which if taken properly, will enhance the human body from a cellular level to perform superhuman fit, fits humans already conclude was nothing but fantasy are now possible.
Enhanced physical strength, super hearing that is almost on par with the greater wax moth, agility that goes up to 200 mph and healing factor that is visible to the naked eye for as long as the person inject with Magani-0 did not outright die, any injury can be heal over time even a lost limp with regenerate given enough time and it has also been recorded to increase the lifespan of whoever take the drug, and this discovery was made know to the top most echelon of the human republic when the scientist who re-engineered the Magani-4 live past the eighty years lifespan mark.
He was the first test subject of magani-0 and he did it while he was forty three years of age, and currently his is over one hundred and fifty two years while still looking like a forty five year old man, he is currently the oldest living human since the plaque.
And now Magani-0 has become the only real honor the best of the best elite can hope to achieve, but it is only for the elite of the elite of the military and the top echelon or those who have the money and license to buy it are allow to, and even than they are all still been monitored.
But just like most unreal things, the Magani-0 also has it down sides which the scientists have been trying their best to overcome, apart from the pain it cause when the patient is been injected, the patient also have to retake Magani-0 every five years, to continue it effect, if it is missed then the patient will completely dry up within two days of missing the five year mark, so even if every single human were to be given the drug, the military will still retain it power.
And just like how the humans been able to capitalize on the hazardous drug, Mother nature also perform it own miracle, the few wild animal that did survived, adapted to the new environment and they former strength as a wild animal becomes strengthened and dangerous.